NASA

Visiting the Roman Space Telescope - as It's Being Assembled (msn.com) 25

"The next great space telescope will study distant galaxies and faraway planets from an orbital outpost about a million miles from Earth," writes the Washington Post. "But first it has to be put together, piece by piece, in a cavernous chamber at the NASA Goddard Space Flight Center in Greenbelt, Maryland."

One long-time NASA worker calls it "the largest clean room in the free world," and the Post notes everyone wears white gowns and surgical masks "to keep hardware from being contaminated by humans. No dust allowed. No stray hairs. One wall is entirely covered by HEPA filters." The place is known as the Clean Room, or sometimes the High Bay. It is 125 feet long, 100 feet wide, 90 feet high, with almost as much volume as the Capitol Rotunda. NASA boasts that in the Clean Room you could put nearly 30 tractor-trailers side by side on the floor and stack them 10 high... About two dozen workers clustered around towering pieces of hardware, some twice or three times the height of a typical person. When stacked and integrated, these components will form the Nancy Grace Roman Space Telescope.

The assembly of the telescope ramped up this fall, with 600 workers aiming to get everything integrated and tested by late 2026. NASA has committed to launching the telescope no later than May 2027. The telescope will be roughly the size of the Hubble Space Telescope, but not quite as long (a "stubby Hubble," some call it). What the astronomy community and the general public will receive in exchange for the considerable taxpayer investment of nearly $4 billion is an instrument that can do what other telescopes can't.

It will have a sprawling field of view, about 100 times that of the Hubble or Webb space telescopes. And it will be able to pivot quickly across the night sky to new targets and download tremendous amounts of data that will be instantly available to the researchers. A primary goal of the Roman is to understand "dark energy," the mysterious driver of the accelerating expansion of space. But it will also attempt to study the atmospheres of exoplanets — worlds orbiting distant stars...

The main element, informally referred to as "the telescope" but officially called the "optical telescope assembly," showed up this fall. It was originally built as a spy satellite for the National Reconnaissance Office. That's right: It was built to look down at Earth, rather than at the rest of the universe. The NRO decided more than a decade ago that it didn't need it, and gave it, along with another, identical spy satellite, to NASA. Roman's wide-angle view of deep space, its maneuverability and ability to download massive amounts of data makes it optimized as a dark energy telescope. And it will also study the effects of dark matter, which comprises about 25 percent of the universe but remains a ghostly presence.

Earth

Nobel Prize Winners Call For Urgent 'Moonshot' Effort To Avert Global Hunger Catastrophe (theguardian.com) 117

More than 150 Nobel and World Food prize laureates have signed an open letter calling for "moonshot" efforts to ramp up food production before an impending world hunger catastrophe. From a report: The coalition of some of the world's greatest living thinkers called for urgent action to prioritise research and technology to solve the "tragic mismatch of global food supply and demand." Big bang physicist Robert Woodrow Wilson; Nobel laureate chemist Jennifer Doudna; the Dalai Lama; economist Joseph E Stiglitz; Nasa scientist Cynthia Rosenzweig; Ethiopian-American geneticist Gebisa Ejeta; Akinwumi Adesina, president of the African Development Bank; Wole Soyinka, Nobel prize for literature winner; and black holes Nobel physicist Sir Roger Penrose were among the signatories in the appeal coordinated by Cary Fowler, joint 2024 World Food prize laureate and US special envoy for global food security.

Citing challenges including the climate crisis, war and market pressures, the coalition called for "planet-friendly" efforts leading to substantial leaps in food production to feed 9.7 billion people by 2050. The plea was for financial and political backing, said agricultural scientist Geoffrey Hawtin, the British co-recipient of last year's World Food prize. [...] The world was "not even close" to meeting future needs, the letter said, predicting humanity faced an "even more food insecure, unstable world" by mid-century unless support for innovation was ramped up internationally.

NASA

NASA's Jet Propulsion Lab Closed Due to Raging LA Fires (space.com) 78

NASA's Jet Propulsion Laboratory (JPL), located at the base of the San Gabriel Mountains just north of Los Angeles, has been temporarily shuttered due to the nearby Eaton fire. "JPL is closed except for emergency personnel. No fire damage so far (some wind damage) but it is very close to the lab. Hundreds of JPLers have been evacuated from their homes & many have lost homes. Special thx to our emergency crews. Pls keep us in your thoughts & stay safe," JPL Director Laurie Leshin announced via X today (Jan. 8). Space.com reports: JPL is federally funded but managed by the California Institute of Technology in Pasadena. The center runs many of NASA's high-profile robotic missions, such as the Perseverance and Curiosity Mars rovers and the $5 billion Europa Clipper, which recently launched to explore an intriguing ocean moon of Jupiter.

The Eaton fire sparked up on Tuesday evening (Jan. 7) near Altadena, which is just north of Pasadena. It has burned at least 1,000 acres (400 hectares) to date, according to CBS News, which cited the California Department of Forestry and Fire Protection (CalFire). The Eaton fire is one of several big blazes churning through the Los Angeles area, driven and spread by record-setting winds. The biggest and most destructive is the Palisades Fire, which is laying waste to the Pacific Palisades neighborhood on the west side of the city.

NASA

Outgoing NASA Administrator Urges Incoming Leaders To Stick With Artemis Plan (arstechnica.com) 45

Before NASA Administrator Bill Nelson retires in a couple of weeks, he has one final message for the next administration: Don't give up on the agency's Artemis Program to return humans to the Moon. In an interview with Ars Technica's Eric Berger, Nelson discussed his time in office, the major decisions he made, and his concerns for the space agency's future under the Trump administration. Here's an excerpt from the interview: Ars: I wanted to start with the state of Artemis. You all had an event a few weeks ago where you talked about Artemis II and Artemis III delays. And you know, both those missions have slipped a couple of years now since you've been administrator. So I'm just wondering, do you know how confident we should be in the current timeline?

Bill Nelson: Well, I am very confident because this most recent [delay] was occasioned by virtue of the heat shield, and it has been unanimous after all of the testing that they understand what happened to Orion's heat shield. The chunks came off in an irregular pattern from the Artemis I heat shield. With the change in the re-entry profile, they are unanimous in their recommendation that we can go with the Artemis II heat shield as it is. And I must say that of the major decisions that I've made, that was an easy one for me because it was unanimous. When I say it was unanimous, it was unanimous in the IRT, the independent review team, headed by Paul Hill. It wasn't to begin with, but after all the extensive testing, everybody was on board. It was unanimous in the deputy's committee. It was unanimous in the agency committee, and that brought it to me then in the Executive Council, and it was unanimous there. So I'm very confident that you're going to see Artemis II fly on or around April of 2026, and then if the SpaceX lander is ready, and that, of course, is a big if -- but they have met all of their milestones, and we'll see what happens on this next test... If they are ready, I think it is very probable that we will see the lunar landing in the summer of 2027.

Ars: Do you think it's appropriate for the next administration to review the Artemis Program?

Bill Nelson: Are you implying that Artemis should be canceled?

Ars: No. I don't think Artemis will be canceled in the main. But I do think they're going to take a look at the way the missions are done at the architecture. I know NASA just went through that process with Orion's heat shield.

Bill Nelson: Well, I think questioning what you're doing clearly is always an issue that ought to be on the table. But do I think that they are going to cancel, as some of the chatter out there suggests, and replace SLS with Starship? The answer is no.

Ars: Why?

Bill Nelson: Put yourself in the place of President Trump. Do you think President Trump would like to have a conversation with American astronauts on the surface of the Moon during his tenure?

Ars: Of course.

Bill Nelson: OK, let me ask you another question. Do you think that President Trump would rather have a conversation with American astronauts during his tenure rather than listening to the comments of Chinese astronauts on the Moon during his tenure? My case is closed, your Honor, I submit it to the jury.
Further reading: Elon Musk: 'We're Going Straight to Mars. The Moon is a Distraction.'
Open Source

New York Times Recognizes Open-Source Maintainers With 2024 'Good Tech' Award (thestar.com.my) 7

This week New York Times technology columnist Kevin Roose published his annual "Good Tech" awards to "shine the spotlight on a few tech projects that I think contributed positively to humanity."

And high on the list is "Andres Freund, and every open-source software maintainer saving us from doom." The most fun column I wrote this past year was about a Microsoft database engineer, Andres Freund, who got some odd errors while doing routine maintenance on an obscure open-source software package called xz Utils. While investigating, Freund inadvertently discovered a huge security vulnerability in the Linux operating system, which could have allowed a hacker to take control of hundreds of millions of computers and bring the world to its knees.

It turns out that much of our digital infrastructure rests on similar acts of nerdy heroism. After writing about Freund's discovery, I received tips about other near disasters involving open-source software projects, many of which were averted by sharp-eyed volunteers catching bugs and fixing critical code just in time to foil the bad guys. I could not write about them all, but this award is to say: I see you, open-source maintainers, and I thank you for your service.

Roose also acknowledges the NASA engineers who kept Voyager 1 transmitting back to earth from interstellar space — and Bluesky, "for making my social media feeds interesting again."

Roose also notes it was a big year for AI. There's a shout-out to Epoch AI, a small nonprofit research group in Spain, "for giving us reliable data on the AI boom." ("The firm maintains public databases of AI models and AI hardware, and publishes research on AI trends, including an influential report last year about whether AI models can continue to grow at their current pace. Epoch AI concluded they most likely could until 2030.") And there's also a shout-out to groups "pushing AI forward" and positive uses "to improve health care, identify new drugs and treatments for debilitating diseases and accelerate important scientific research."
  • The nonprofit Arc Institute released Evo, an AI model that "can predict and generate genomic sequences, using technology similar to the kind that allows systems like ChatGPT to predict the next words in a sequence."
  • A Harvard University lab led by Dr. Jeffrey Lichtman teamed with researchers from Google for "the most detailed map of a human brain sample ever created. The team used AI to map more than 150 million synapses in a tiny sample of brain tissue at nanometer-level resolution..."
  • Researchers at Stanford and McMaster universities developed SyntheMol, "a generative AI model that can design new antibiotics from scratch."

Mars

Elon Musk: 'We're Going Straight to Mars. The Moon is a Distraction.' (arstechnica.com) 278

"We're going straight to Mars. The Moon is a distraction," Elon Musk posted Thursday on X.com.

Ars Technica's senior space editor points out that "These are definitive statements that directly contradict NASA's plans to send a series of human missions to the lunar south pole later this decade and establish a sustainable base of operations there with the Artemis Program." And "It would be one thing if Musk was just expressing his opinion as a private citizen..." but Musk "has assumed an important advisory role for the incoming administration. He was also partly responsible for the expected nomination of private astronaut [and former SpaceX flight commander] Jared Isaacman to become the next administrator of NASA. Although Musk is not directing US space policy, he certainly has a meaningful say in what happens." So what does this mean for Artemis? The fate of Artemis is an important question not just for NASA but for the US commercial space industry, the European Space Agency, and other international partners who have aligned with the return of humans to the Moon. With Artemis, the United States is in competition with China to establish a meaningful presence on the surface of the Moon. Based upon conversations with people involved in developing space policy for the Trump administration, I can make some educated guesses about how to interpret Musk's comments. None of these people, for example, would disagree with Musk's assertion that "the Artemis architecture is extremely inefficient" and that some changes are warranted.

With that said, the Artemis Program is probably not going away. After all, it was the first Trump administration that created the program about five years ago. However, it may be less well-remembered that the first Trump White House pushed for more significant changes, including a "major course correction" at NASA... To a large extent, NASA resisted this change during the remainder of the Trump administration, keeping its core group of major contractors, such as Boeing and Lockheed Martin, in place. It had help from key US Senators, including Richard Shelby, the now-retired Republican from Alabama. But this time, the push for change is likely to be more concerted, especially with key elements of NASA's architecture, including the Space Launch System rocket, being bypassed by privately developed rockets such as SpaceX's Starship vehicle and Blue Origin's New Glenn rocket.

In all likelihood, NASA will adopt a new "Artemis" plan that involves initiatives to both the Moon and Mars. When Musk said "we're going straight to Mars," he may have meant that this will be the thrust of SpaceX, with support from NASA. That does not preclude a separate initiative, possibly led by Blue Origin with help from NASA, to develop lunar return plans.

One month ago in a post on X.com, incoming NASA administrator Isaacman described himself as "passionate about America leading the most incredible adventure in human history..."

And he also added that Americans "will walk on the Moon and Mars and in doing so, we will make life better here on Earth."
Space

Billionaires and Tech Barons Vying To Build a Private Space Station (telegraph.co.uk) 61

"Private space stations have been raising billions of dollars in an effort to build future hubs — and even one day cities — in orbit," according to a recent report from the U.K. newspaper, the Telegraph: Axiom Space, a US business aiming to build its own station, has raised more than $500m (£400m). Vast, a space business backed by crypto billionaire Jed McCaleb, is plotting two stations before the end of the decade. Gravitics, meanwhile, has raised tens of millions of dollars for its modular space "real estate". Nasa itself, along with other space agencies, is planning a further station, Lunar Gateway, which will orbit the Moon. Jeff Bezos's Blue Origin has also announced plans to build a space station by 2027, called Orbital Reef, which it has described as an orbital "mixed-use business park". Working with US aerospace business Sierra Space, Orbital Reef will be made up of inflatable pods, which can be launched on a regular rocket before being "blown up" in space. Sierra Space says these modules could house in-space manufacturing or pharmaceutical technology...

Since 2021, Nasa has also offered to pay hundreds of millions of dollars to private companies to develop commercial space stations that could succeed the ISS. So far, it has handed $400m to companies including Axiom, Blue Origin (which is working with Sierra Space), and Northrop Grumman... Vast hopes to launch its first space station, Haven-1, as soon as 2025. This simple module will be the first privately-run space station and will be occupied by a crew of four over four two week expeditions... While Vast was not one of the businesses to secure funding from Nasa, it hopes by launching the first proof-of-concept space station as soon as next year it can leapfrog rival efforts and claim the agency as an anchor customer. From there, it can target other space agencies or companies looking to conduct research.

Some interesting perspectives from the article:
  • Chris Quilty, an analyst at Quilty Space: "If China were not building its own space station it is arguable whether Nasa would have felt enjoined to maintain a human presence in low Earth orbit."
  • Tim Farrar, founder of TMF Associates, which advises some of the world's top space companies: "Unless they either secure government funding or focus on space tourism, they will inevitably have to rely on the largess of either billionaires or gullible investors who are space enthusiasts."

Thanks to Slashdot reader fjo3 for sharing the news.


Medicine

'Did Anything Good Happen in 2024? Actually, Yes!' (yahoo.com) 45

The Washington Post shares some good news from 2024: Researchers were able to detect a significant dip in atmospheric levels of hydrochlorofluorocarbons — harmful gases that deplete the ozone layer — for the first time, almost 30 years after countries first agreed to phase out the chemicals.

A new satellite launched in March to track and publicly reveal the biggest methane polluters in the oil and gas industry — an important step in tackling the greenhouse gas that accounts for almost a third of global warming. The NASA/Carbon Mapper satellite, which measures CO2 and methane emissions, also launched, providing detailed images from individual oil and gas facilities across the world.

Back on Earth, the world's largest plant for pulling carbon dioxide out of the atmosphere opened in Iceland. Norway became the first country to have more electric than gas-powered vehicles, while one Japanese island began using a new generation of batteries to help stockpile massive amounts of clean electricity.

There were also small but important victories for animal conservation. The Iberian lynx, a European wildcat once on the brink of extinction, is no longer classed as an "endangered" species — in what experts have hailed as the "greatest recovery of a cat species ever achieved through conservation...."

Despite a large number of powerful tornadoes to hit the United States in early 2024, the death tolls were fortunately not as high as meteorologists feared, in part due to improved forecasting technology.

The article also notes America's Food and Drug Administration approved a new therapy which uses a patients' own cells to attack skin cancer for adults for whom surgery isn't an option. "Experts said the decision could open the door to similar treatments for far more common cancers."

And one more inspiring story from 2024: 105-year-old Virginia Hislop, of Yakima, Washington received her master's degree from Stanford University...
NASA

NASA's Parker Solar Probe Reports Successful Closest Approach To Sun (nasa.gov) 8

Following its record-breaking closest approach to the Sun, NASA's Parker Solar Probe has transmitted a beacon tone back to Earth indicating it's in good health and operating normally. NASA: The mission operations team at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland received the signal just before midnight EST, on the night of Dec. 26. The team was out of contact with the spacecraft during closest approach, which occurred on Dec. 24, with Parker Solar Probe zipping just 3.8 million miles from the solar surface while moving about 430,000 miles per hour.

The spacecraft is expected to send back detailed telemetry data on its status on Jan. 1. This close-up study of the Sun allows Parker Solar Probe to take measurements that help scientists better understand how material in this region gets heated to millions of degrees, trace the origin of the solar wind (a continuous flow of material escaping the Sun), and discover how energetic particles are accelerated to near light speed. Previous close passes have helped scientists pinpoint the origins of structures in the solar wind and map the outer boundary of the Sun's atmosphere.

NASA

NASA's Parker Solar Probe Completes Historic Christmas Eve Flyby of the Sun (livescience.com) 21

NASA's Parker Solar Probe made a historic approach on Christmas Eve, flying within 3.8 million miles of the Sun at a record-breaking speed of 430,000 mph. It marks humanity's closest encounter with a star. Live Science reports: Mission control cannot communicate with the probe during this rendezvous due to its vicinity to the sun, and will only know how the spacecraft fared in the early hours of Dec. 27 after a beacon signal confirms both the flyby's success and the overall state of the spacecraft. Images gathered during the flyby will beam home in early January, followed by scientific data later in the month when the probe swoops further away from the sun, Nour Rawafi, who is the project scientist for the mission, told reporters at the Annual Meeting of the American Geophysical Union (AGU) earlier this month.

Parker launched in 2018 to help decode some of the biggest mysteries about our sun, such as why its outermost layer, the corona, heats up as it moves further from the sun's surface, and what processes accelerate charged particles to near-light speeds. In addition to revolutionizing our understanding about the sun, the probe also caught rare closeups of passing comets and studied the surface of Venus. On Christmas Eve, scientists expect the probe to have flown through plumes of plasma still attached to the sun, and hope it observed solar flares occurring simultaneously due to ramped-up turbulence on the sun's surface, which spark breathtaking auroras on Earth but also disrupt communication systems and other technology.
"Right now, Parker Solar Probe has achieved what we designed the mission for," Nicola Fox, the associate administrator for NASA Science Mission Directorate at NASA Headquarters in Washington, D.C., said in a NASA video released on Dec. 24. "It's just a total 'Yay! We did it' moment."
ISS

Space Station Keeps Dodging Debris From China's 2007 Satellite Weapon Test (msn.com) 37

fjo3 shares a report from the Washington Post: The International Space Station had to fire thrusters from a docked spacecraft last month to avoid a piece of debris that has been circling the globe for the nearly 18 years since the Chinese government blasted apart one of its own satellites in a weapons test. The evasive maneuver was the second in just six days for the space station, which has four NASA astronauts and three Russian cosmonauts aboard. That is the shortest interval ever between such actions, illustrating the slowly worsening problem of space junk in orbit. Debris is an increasingly vexing issue not only for NASA, but also for companies such as SpaceX and OneWeb seeking to protect the thousands of small satellites they send into space to provide high-speed internet. The debris cloud from China's 2007 destruction of the Fengyun 1C satellite remains one of the most persistent threats in orbit, with about 3,500 fragments still posing collision risks to spacecraft. Since 2020, the ISS has performed 15 debris-avoidance maneuvers.

The evasive maneuver was performed after a Space Force warning. According to the report, Space Force now tracks over 47,200 objects in orbit, issuing approximately 23 daily collision warnings -- up from just six per day five years ago.
Earth

Sea Levels are Already Rising in America's Southeast. A Preview of the Future? (msn.com) 87

The Washington Post visits one of over 100 tide-tracking stations around the U.S. -- Georgia's Fort Pulaski tide gauge: Since 2010, the sea level at the Fort Pulaski gauge has risen by more than 7 inches, one of the fastest rates in the country, according to a Washington Post analysis of National Oceanic and Atmospheric Administration data for 127 tide gauges. Similar spikes are affecting the entire U.S. Southeast -- showing a glimpse of our climate future... [I]n the previous 30 years, the ocean rose about 3.7 inches. And the deluge stretches all across the South and the Gulf Coast; over the past 14 years, sea levels in the U.S. South have risen twice as fast as the global average...

Scientists suspect part of that is because of the Gulf Stream -- a long band of warm water that follows the coast up from the equator and then, near Cape Hatteras, turns out into the Atlantic Ocean. The waters of the Gulf Stream and the Gulf of Mexico are warming faster than other parts of the Atlantic, boosting sea levels. "The Gulf of Mexico has warmed exceptionally fast over the past decade and a half," Piecuch said. "It's uncontroversial." But scientists have puzzled over where all that heat is coming from... [T]he current heat could be part of long-term variations in ocean currents, and not a clear signal of climate change. But the fact that the change is linked to heat -- at the same time as the entire ocean is taking on excess heat from global warming -- makes some experts suspicious. "This particular mechanism does not immediately suggest it's just natural variability," [said Ben Hamlington, a research scientist who leads NASA's sea level change team].

For now, sea levels in the Southeast are surging -- and they provide an early picture of what most of the United States, and the rest of the world, will experience as oceans rise... On Tybee Island -- whose population of 4,000 swells to over 100,000 during the summer months -- leaders have gotten used to the constant fight against the waves. Five or six times a year, high tides sweep over the one road that connects the island to the mainland, cutting residents off from services. By 2050, scientists estimate, those high tides will happen 70 days a year. With the help of the U.S. Army Corps of Engineers, the city has built dunes to protect vacation homes and local storefronts from the rising water; many homeowners have also raised their properties high up into the air. In Savannah, small businesses and city streets are washed in floods even on bright, sunny days -- thanks to high tides that surge into the drainage system. The city estimates that it will cost $400 million to update the stormwater infrastructure over the next two decades. So far, it has raised $150 million...

Other states and cities will soon see the same effects. NASA projections show that in the coming decades, many cities in the Northeast will experience up to 100 more days of high-tide flooding each year.

"Some researchers think that the Southeast acceleration may be linked to long-term weather patterns in the Atlantic Ocean like the North Atlantic Oscillation.

"If so, the trend could switch in the coming decades -- with areas of the Northeast seeing rapid sea level rise while the trend in the Southeast slows down."
Space

Voyager 1 Signals from Interstellar Space Detected by Amateur Astronomers on 1950s Telescope (camras.nl) 26

"Voyager 1 is currently exploring interstellar space at a distance of 15.5 billion miles (24.9 billion kilometers) away from Earth," writes Gizmodo.

And yet a team of amateur astronomers in the Netherlands was able to receive Voyager's signals on a 1950s-era telescope... The astronomers used orbital predictions of Voyager 1's position in space to correct for the Doppler shift in frequency caused by the motion of Earth, as well as the motion of the spacecraft through space... [The signal] was found live, and further analysis later confirmed that it corresponded to the position of Voyager 1.
"I did the experiment," mathematician/scientific software engineer Tammo Jan Dijkema told Slashdot in an email, as "one of a crew of four." He works at ASTRON (the Netherlands Institute for Radio Astronomy) while volunteering at the Dwingeloo radio telescope, and wants to clarify any suggestion in Gizmodo's article "that we received signals at S-band, which is not true. We received the 'normal' Voyager-1 signal at 8.4 GHz. See our blog post... The Dwingeloo reception was not related to Voyager's temporary glitch at all."

And Scientific American shares an interesting perspective on the Voyager probes: we everyday Earthlings may simplistically think of the sun as a compact distant ball of light, in part because our plush atmosphere protects us from our star's worst hazards. But in reality the sun is a roiling mass of plasma and magnetism radiating itself across billions of miles in the form of the solar wind, which is a constant stream of charged plasma that flows off our star. The sun's magnetic field travels with the solar wind and also influences the space between planets. The heliosphere grows and shrinks in response to changes in the sun's activity levels over the course of an 11-year cycle... [Jamie Rankin, a space physicist at Princeton University and deputy project scientist of the Voyager mission] notes, astronomers of all stripes are trapped within that chaotic background in ways that may or may not affect their data and interpretations. "Every one of our measurements to date, until the Voyagers crossed the heliopause, has been filtered through all the different layers of the sun," Rankin says.

On their trek to interstellar space, the Voyagers had to cross a set of boundaries: first a termination shock some seven billion or eight billion miles away from the sun, where the solar wind abruptly begins to slow, then the heliopause, where the outward pressure from the solar wind is equaled by the inward pressure of the interstellar medium. Between these two stark borders lies the heliosheath, a region where solar material continues to slow and even reverse direction. The trek through these boundaries took Voyager 1, the faster of the twin probes, nearly eight years; such is the vastness of the scale at play.

Beyond the heliopause is interstellar space, which Voyager 1 entered in 2012 and Voyager 2 reached in 2018. It's a very different environment from the one inside our heliosphere — quieter but hardly quiescent. "It's a relic of the environment the solar system was born out of," Rankin says of the interstellar medium. Within it are energetic atomic fragments called galactic cosmic rays, as well as dust expelled by dying stars across the universe's eons, among other ingredient.

Earlier this month Wired noted " The secret of the Voyagers lies in their atomic hearts: both are equipped with three radioisotope thermoelectric generators, or RTGs — small power generators that can produce power directly on board. Each RTG contains 24 plutonium-238 oxide spheres with a total mass of 4.5 kilograms..." But as time passes, the plutonium on board is depleted, and so the RTGs produce less and less energy. The Voyagers are therefore slowly dying. Nuclear batteries have a maximum lifespan of 60 years. In order to conserve the probes' remaining energy, the mission team is gradually shutting down the various instruments on the probes that are still active...

Four active instruments remain, including a magnetometer as well as other instruments used to study the galactic environment, with its cosmic rays and interstellar magnetic field. But these are in their last years. In the next decade — it's hard to say exactly when — the batteries of both probes will be drained forever.

ISS

Axiom's Private Space Station Could Arrive As Early As 2028 (space.com) 5

Axiom Space has revised its plan for assembling its commercial space station by launching the Payload, Power, and Thermal module first, enabling it to operate as a free-flying platform as early as 2028 -- two years ahead of the original timeline. Space.com reports: NASA awarded Axiom Space a contract in 2020 to attach one or more modules to the International Space Station (ISS), which is set to retire by 2030 at the earliest. The original plan called for Axiom to detach a multi-module group from the ISS, creating a commercial outpost in low Earth orbit that will continue operating after the ISS is gone. But that plan has now been altered.

To create its space station, Axiom plans to launch five modules: a payload/power/thermal element, an airlock, a research/manufacturing hub, and a pair of habitat modules. The original plan was for Axiom to launch the Habitat 1 module to the ISS first, followed by the additional elements. The new assembly sequence will see the Payload, Power and Thermal module launch to the ISS first. This module could detach from the station -- and become a free flyer called Axiom Station -- as soon as 2028, according to the company. After that happens, Axiom will continue assembling the outpost, launching the Habitat 1 module to meet up with it. Habitat 1 will be followed by the airlock, the Habitat 2 module, and then the research and manufacturing facility.
Angela Hart, a manager for the Commercial Low Earth Orbit Development Program at NASA's Johnson Space Center in Houston, said: "The updated assembly sequence has been coordinated with NASA to support both NASA and Axiom Space needs and plans for a smooth transition in low Earth orbit."
NASA

We're About To Fly a Spacecraft Into the Sun For the First Time (arstechnica.com) 43

NASA's Parker Solar Probe will make its closest approach yet to the Sun on Christmas Eve, flying within 3.8 million miles of the solar surface and entering its atmosphere for the first time.

The spacecraft, which travels at speeds up to 430,000 miles per hour, aims to study the origins of solar wind -- the stream of charged particles emanating from the Sun's corona. The probe's heat shield will endure temperatures exceeding 2,500-degree Fahrenheit during the flyby, requiring specialized materials like sapphire crystal tubes and niobium wiring to protect its instruments.
ISS

Russia Space Chief Says Country Will Fly On Space Station Until 2030 (arstechnica.com) 33

Ars Technica's Eric Berger reports: In a wide-ranging interview with a Russian television station, the chief executive of Russia's main space corporation said the country is now planning to participate in the International Space Station project all the way to NASA's desired goal of 2030. "In coordination with our American colleagues, we plan to de-orbit the station sometime around the beginning of 2030," the country's chief space official, Yuri Borisov, said during the interview. "The final scenario will probably be specified after the transition to a new NASA administration."

While the documents for such an extension have not been signed, these comments appear to represent a change in tone from Russia. When he first became head of Roscosmos in 2022, Borisov said Russia would leave the station partnership "after" 2024, which was interpreted as shortly thereafter. Later, Russia committed to working with NASA to keep the orbital outpost flying only through 2028. The US space agency has expressed a consistent desire to keep flying the station until 2030, after which point it hopes that private space station operators can provide one or more replacement facilities.
Borisov said the aging station, elements of which have now been in space for more than a quarter of a century, are becoming difficult to maintain. "Today our cosmonauts have to spend more time repairing equipment and less and less time conducting experiments," he said.
Borisov also discussed Russia's challenges of getting private investment in space-related activities, saying: "In the West, particularly in America, 70 percent of space services are provided by satellite constellations created by private companies. This process has only just begun with us. This is a very risky business for potential investors."

"Right now, the dynamic growth of private space is being influenced by the general economic situation (likely referring to Russia's costly war in Ukraine), high inflation and interest rates, which leads to expensive money for private investors. We can hope that this will be a temporary period and more favorable times will come soon."
ISS

Astronauts Who Flew To Space Aboard Starliner Face Additional Delay (cnn.com) 44

NASA has delayed the launch of SpaceX Crew-10 to late March 2025 to allow time for processing a new Dragon spacecraft, extending the stay of astronauts Butch Wilmore and Suni Williams on the ISS to about nine months. CNN reports: Williams and Wilmore launched to space in June, piloting the first crewed test flight of Boeing's Starliner spacecraft. Their trip, expected to last about a week, ballooned into a monthslong assignment after their vehicle experienced technical issues en route to the space station and NASA determined it would be too risky to bring them home aboard the Starliner.

The astronauts have since joined Crew-9, a routine space station mission originally slated to return to Earth no earlier than February after a handoff period with Crew-10. Now, Crew-10 will get off the ground at least a month later than expected because NASA and SpaceX teams need "time to complete processing on a new Dragon spacecraft for the mission," according to the space agency.
"NASA and SpaceX assessed various options for managing the next crewed handover, including using another Dragon spacecraft," NASA noted in a blog post on Tuesday. "After careful consideration, the team determined that launching Crew-10 in late March, following completion of the new Dragon spacecraft, was the best option for meeting NASA's requirements and achieving space station objectives for 2025."
China

US Weighs Banning TP-Link Router Over National Security Concerns (msn.com) 148

U.S. authorities are investigating Chinese router manufacturer TP-Link over national security risks and considering banning its devices, WSJ reported Wednesday, citing sources familiar with the matter. The Commerce, Defense and Justice departments have launched separate probes into the company, which controls approximately 65% of the U.S. home and small business router market.

Microsoft reported in October that Chinese hackers had compromised thousands of TP-Link routers to launch cyberattacks against Western targets, including government organizations and Defense Department suppliers. The company's routers are widely used across federal agencies, including the Defense Department and NASA. The Justice Department is also examining whether TP-Link's significantly lower pricing violates federal anti-monopoly laws, the report said.
Space

Does Space Need Environmentalists? (noemamag.com) 104

Does space need environmentalists, asks the headline from a new article in Noema magazine. "As astrophysicist Neil deGrasse Tyson notes, the first trillionaire will be made in space.

"But amid such promising developments are worries among some scientists and environmentalists who fear humans will repeat the errors that resource extraction has wrought on Earth..." If we have mining in space, do we need a preemptive anti-mining campaign to protect our solar system from rampant exploitation before it is too late? Earth-bound environmental advocates and astrobiologists alike have concluded that, indeed, we need an environmental movement in space... [Daniel Capper, an adjunct professor of philosophy at the Metropolitan State University of Denver] is part of a small but growing chorus of intellectuals who argue that we must carve out protections sooner rather than later — backed by a concrete theoretical and legal framework — for certain areas of the solar system. The United Nations has convened a working group on the use of space resources, and the International Astronomical Union has set up a different working group to delineate places of special scientific value on the moon.

Some researchers have proposed creating a planetary park system in space, while others advocate for a circular space economy that minimizes the need for additional resources. The nonprofit For All Moonkind is advocating for the protection of space sites of cultural importance, like the Apollo 11 landing site. And the Astra Carta, backed by Britain's King Charles, advocates for making sustainability a key component of space activities... [Martin Elvis, an astronomer with the Center for Astrophysics at Harvard University and the Smithsonian Institution] proposed setting aside 7/8ths of the solar system as wilderness, in a paper published in 2019 in Acta Astronautica that he coauthored with King's College London philosopher Tony Milligan...

[T]he lack of norms — clear rules and regulations around space — is one of the most pressing threats to the space environment, advocates say. What might happen, for example, if the United States simply began scooping up asteroids for platinum, or if Blue Origin established a mine at the lunar South Pole without securing consensus from others? "We do not have good answers to those questions right now," Hanlon said. "This is something that I'm really concerned about." Much of the legal basis for the space environmentalism movement is currently contained in just one article of the Outer Space Treaty (OST), said Christopher Johnson, the director of legal affairs and space law at the Secure World Foundation. Article 9 of the OST contains the harmful contamination language and says actors must pay "due regard" to the interests of others. It also stipulates that "harmful interference" with the activities of others must be avoided. Those phrases could be interpreted in multiple ways and have yet to be meaningfully tested.

The article cites two concrete proposals moving forward:
  • "The Artemis Accords, a set of principles for exploring and using resources in outer space established by the U.S. in 2020, argues that resource extraction does not constitute national appropriation, and is therefore allowed by the OST. It's an initial step toward securing a consensus on space regulations, and one that's to date received the signatures of 47 nations including Japan, the United Kingdom, France and Germany (though China and Russia are notably absent). Signing the Artemis Accords allows nations to participate in the Artemis program, and also play a role in shaping future norms in space, Johnson said, a potentially lucrative incentive... "
  • "The UN's COPUOS, the same one responsible for the OST and the Moon Agreement, published a working paper in 2019 that laid out voluntary guidelines for the long-term sustainability of outer space activities. Recommendations from the committee's working group on principles for the use of space resources are due in 2027, and Johnson said draft guidelines are likely to emerge in early 2025."

"One day, our descendants might live among the stars," the article concludes. "But we must ask ourselves, what kind of place will they inherit?"


Mars

NASA Thinks It Knows Why Ingenuity Crashed On Mars (universetoday.com) 52

NASA believes Ingenuity's navigation system was responsible for its crash on the surface of Mars. Engineers determined that the helicopter's navigation system struggled to track features over smooth terrain, leading to a hard landing and structural failure. Universe Today reports: Now, almost a year after the incident, a team of engineers from NASA's Jet Propulsion Laboratory have been analyzing the data. Their findings will be published in the next few weeks however the team of engineers assert it was harder than expected to complete an accident investigation from 160 million kilometers. The faults lie in the navigation system that was designed to visually track surface features using a camera pointed at the round. The system worked during early flights over more textured terrain but as Ingenuity moved over the Jezero Crater, it began operating over featureless sand ripples.

The navigation system was designed to provide estimates of the helicopter's velocity, chiefly to enable it to land. The data revealed from Flight 72 revealed that the navigation system couldn't find features to track. Images showed that the lack of features led to a harder than usual touchdown leading to a pitch and roll of the craft. The sudden change of attitude led to increase load on the rotors, beyond their designed limits leading to the structural damage.
"Even though Ingenuity will not be able to fly anymore it can still provide weather and avionics data to the Perseverance rover," notes Universe Today. "It will help us to understand more about the weather in its vicinity but perhaps its greatest legacy are its hours of flight on an alien world."

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