mdsolar writes: Offshore wind farms are growing in popularity as energy providers look for different ways of harvesting power from the sun without using valuable land resources. One unique idea being developed by engineers at Vienna University of Technology is a floating platform called a Heliofloat that would function as a sea-based solar power station.... an open-bottom, flexible float as large as a football field and covered from edge to edge with solar panels. Heliofloats can operate as standalone platforms for smaller operations with moderate energy requirements. Multiple heliofloats also can be connected together, forming a floating solar-harvesting power grid.
Each heliofloat is 100 meters long, reportedly cheap and easy to build, and may eventually be used to power desalination plants and biomass extraction.

An anonymous reader writes: Oracle has released the April 2016 Critical Patch Update, which provides fixes for 136 vulnerabilities in 49 products, including Java SE and MySQL, the company's Database Server and E-Business Suite, its Fusion Middleware, and its Sun Systems Products Suite. "Oracle continues to periodically receive reports of attempts to maliciously exploit vulnerabilities for which Oracle has already released fixes. In some instances, it has been reported that attackers have been successful because targeted customers had failed to apply available Oracle patches. Oracle therefore strongly recommends that customers remain on actively-supported versions and apply Critical Patch Update fixes without delay," the company advised.

An anonymous reader writes: NASA is working on developing a next-generation supersonic jet that can break the sound barrier with a soft "thump" instead of a sonic boom. They are using a technique called schlieren imagery to "visualize supersonic flow phenomena with full-scale aircraft in flight" with the sun as the backdrop for the photos. According to a NASA blog post, viewing shock waves and their density is crucial to the project so engineers can work on a design to minimize those reverberations. While the Quiet Supersonic Technology (QueSST) research aircraft is being developed, stunning images were captured of a supersonic jet flying at Mach 1.05 with the sun in the background. NASA says when QueSST is operational, it could "unlock the future to commercial supersonic flight over land," essentially ushering in a new era of aviation that could allow us to get from point A to point B faster and without the loud roar of the Concorde as it breaks the sound barrier.

Reader Socguy writes: Scientists in China have developed a prototype solar panel with a single atom-thick layer of graphene on the surface. This layer allows the panel to generate electricity, not just from the sun but also from any rain that falls on it. This development promises to further boost the output of solar panels during times of less than optimal conditions.Also from the report, "All it takes is a mere one-atom thick graphene layer for an excessive amount of electrons to move as they wish across the surface. In situations where water is present, graphene binds its electrons with positively charged ions. Some of you may know this process to be called as the Lewis acid-base interaction."

Taco Cowboy quotes a report from Yahoo News: Astronomers have stumbled upon a supermassive black hole in an unexpected corner of the Universe, implying these galactic monsters are much more common than once thought, a study said Wednesday. The giant, with an estimated mass 17 billion times that of our Sun, was discovered in a relative desert, astronomers from the University of California, Berkeley, wrote in the journal Nature. "While finding a gigantic black hole in a massive galaxy in a crowded area of the Universe is to be expected -- like running across a skyscraper in Manhattan -- it seemed less likely they could be found in the Universe's small towns," said a university statement. Big, star-rich galaxies where supermassive black holes had previously been found, are very rare. Smaller ones like the NGC 1600 galaxy housing the newly-discovered whopper, are much more common, but were not previously thought to be appropriate host. "So the question now is: 'Is this the tip of an iceberg?'" said study co-author Chung-Pei Ma. "Maybe there are a lot more monster black holes out there that don't live in a skyscraper in Manhattan, but in a tall building somewhere in the Midwestern plains." The largest supermassive black hole spotted to date tipped the scales at about 21 billion solar masses, said the study authors.

An anonymous reader quotes a report from Washington Post: Most of the time when we talk about silly scientific papers related to alien life, we're talking about crazy ideas for how to find aliens. But a new study in the Monthly Notices of the Royal Astronomical Society proposes a way of hiding from aliens. Humans are so fickle. A lot of our search for Earth-like planets (and, by extension, for life as we know it) hinges on transiting planets. These are planets that pass in front of their host star in such a way that the transit is visible from our perspective. The movement of the planet in front of the host star makes the light from that star dim or flicker, and we can use that to determine all sorts of things about distant worlds -- including how suitable they may be for life. Professor David Kipping and graduate student Alex Teachey, both of Columbia University, determined how much laser light it would take to mask the dimming caused by our planet transiting the sun, or cloak the atmospheric signatures associated with biological activity, [such as oxygen, which is achievable with a peak laser power of just 160 kW per transit]. From the report: "According to their math, it would take 10 continuous hours of shining a 30 MW laser once a year to eliminate the transit signal in visible light. Actually replicating every wavelength of light emitted by the sun would take about 250 MW of power."

Phys.org is reporting the discovery of a rare planet with three different stars in its sky, two distant stars orbiting each other and a closer third star which would appear 40 times as large as our sun. Two robotically controlled telescopes -- one in Arizona, one in South Africa -- determined the gas giant planet KELT-4Ab was orbiting two separate stars which had always appeared to be one. The brighter third star will make it easier to study both the star itself and the nearby planet. "Known planets with three stars appearing in their sky are rare," reports Phys.org," adding "this new discovery is just the fourth, and it has caused excitement in the space community because it is the closest one yet, allowing for a better look than has been possible with the other finds."

"The environment in which this planet exists is quite spectacular," add Maciej Konacki from the California Institute of Technology, telling Space.com that "With three suns, the sky view must be out of this world -- literally and figuratively."

An anonymous reader writes: As far as I know, I am not particularly sensitive to glare; I've used CRTs in offices full of overhead fluorescent lights, and just ignored the terrible reflections, and I've worked in places where the natural sunlight cleverly funneled in by architects was bounced around by glass walls and mirrors in just the right way to irritate. Still, I never found it much of a problem. Now, though, I work in a field that has me both working outdoors a lot, and traveling by car a fair amount, too. Now that days are getting longer, especially up here in the Pacific Northwest, I know that I'll be squinting and cursing a lot at my phone. My question(s): Are there are any modern smart phones you can recommend with a truly or even passably day-light readable screen? I don't care if it's e-ink (that would be cool), transflective (long promised!) or maybe just a secondary screen with some daylight-readable technology. Barring that, how do you deal with glare on a phone, when you need to use it on a sunny day? Same answer could apply to laptop use, I suppose. Do you build a little glare shield, of the kind that camera operators use? Wear a giant hood of privacy and darkness? I know I'm not alone — I see lots of others squinting and cursing at their cell phones, cupping it with their hands at their eyes, or ducking into scant shade just to see whether the call that's coming is one they need to take, or to read a text. I've tried quite a few phones that have been praised by reviewers for their bright, crisp, daylight-friendly displays, but I think those reviewers probably lived in New York or San Francisco, and were reading in either shadow or fog, because even the brightest Samsungs, Motorolas, and LGs I've seen cannot hold a candle to the summer sun north of Seattle.

An anonymous reader cites an article on The Verge: More evidence is pointing toward a mysterious Neptune-sized planet lurking at the outer edges of our Solar System. One of the scientists who claimed in January to have found strong evidence for a ninth planet -- temporarily named 'Planet Nine' -- now says there are even more clues that support the world's existence. Mike Brown, a planetary astronomer at Caltech University, originally concluded that Planet Nine most likely exists after studying the behaviors of six objects in the Kuiper Belt -- the large cloud of icy bodies that orbit the Sun beyond Neptune. Now Brown is claiming that another Kuiper Belt object supports his theory. The object shares some of the same behavior as the other six Kuiper Belt bodies, suggesting it has also been pushed by a large planet that is between 200 and 1,200 times the distance from the Sun to Earth.

tedlistens writes: On Wednesday, a solar eclipse gave people across a swath of Indonesia and the South Pacific the chance to see a generous 4 minutes and 9 seconds of totality: the awe-inspiring sight of the moon completely covering the sun, turning day into night and offering a rare glimpse of the corona, the gas swirling in the Sun's outer atmosphere. But in 1972, a small group of astronomers from around the globe sought a way for seeing a longer eclipse than ever before: a prototype Concorde, capable of chasing the eclipse for a whopping 74 minutes across the Sahara Desert, at twice the speed of sound.

alphadogg writes: Whitfield Diffie and Martin Hellman, whose names have been linked since their seminal paper introduced the concepts of public key encryption and digital signatures some 40 years ago, have been named winners of the $1M A.M. Turing Award for 2015 (a.k.a., the 'Nobel Prize of Computing'). The work of Diffie, formerly chief security officer of Sun Microsystems, and Hellman, professor emeritus of electrical engineering at Stanford University, has had a huge impact on the secure exchange of information across the Internet, the cloud and email.

An anonymous reader writes: Immediately after its 2008 launch, NASA's Interstellar Boundary Explorer (IBEX) spotted a curiosity in a thin slice of space: more particles streamed in through a long, skinny swath in the sky than anywhere else. Now, a new study uses IBEX data and simulations of the interstellar boundary to better describe space in our galactic neighborhood. The paper, published earlier this month in The Astrophysical Journal Letters, precisely determines the strength and direction of the magnetic field outside the heliosphere. Such information gives us a peek into the magnetic forces that dominate the galaxy beyond, teaching us more about our home in space. The new paper is based on one particular theory of the origin of the IBEX ribbon, in which the particles streaming in from the ribbon are actually solar material reflected back at us after a long journey to the edges of the Sun's magnetic boundaries.

schwit1 writes: Prosecutors in a Los Angeles suburb say they have dramatically scaled back a vast and legally questionable eavesdropping operation, built by federal drug agents, that once accounted for nearly a fifth of all U.S. wiretaps. The wiretapping, authorized by prosecutors and a single state-court judge in Riverside County, alarmed privacy advocates and even some U.S. Justice Department lawyers, who warned that it was likely illegal. An investigation last year by The Desert Sun and USA TODAY found that the operation almost certainly violated federal wiretapping laws, while using millions of secretly intercepted calls and texts to make hundreds of arrests nationwide. Riverside's district attorney, Mike Hestrin, acknowledged being concerned by the scope of that surveillance, and said he enacted "significant" reforms last summer to rein it in. Wiretap figures his office released this week offer the first evidence that the enormous eavesdropping program has wound down to more routine levels.

frank249 writes: A B.C. engineering lab has created metal-coated glass that transmits up to 10 per cent more light than conventional glass and opens the door to windows that function as electronics. The most immediate use of the technology is to create windows that can be programmed to absorb or reflect heat, depending on the needs of a building's occupants. Adding electronic control to windows will allow you to change the amount of light and heat passing through to more effectively use the energy provided by the sun naturally, Lead investigator Kenneth Chau credit films like Iron Man or Star Trek with providing them inspiration. "There is a dream that we can make glass smarter," he said. "These films give us concepts to strive for; the hard work is uncovering the science to make it happen." All those hours spent watching Star Trek are now starting to look like a "pretty good investment," he said. The results were published this week in the journal Scientific Reports.

Today, scientists from the German Aerospace Center (DLR) announced that they are saying goodbye to Philae, the comet lander that is currently perched on Comet 67P/Churyumov-Gerasimenko as it races toward the sun. According to Stephan Ulamec, Philae's project manager, "Unfortunately, the probability of Philae re-establishing contact with our team at the DLR Lander Control Center is almost zero." Philae first made history when it successfully landed on a comet in fall of 2014, but problems soon began when commands were not able to reach the robot.

sciencehabit writes: Tracking and recording the motion of the sun, the moon, and the planets as they paraded across the desert sky, ancient Babylonian astronomers used simple arithmetic to predict the positions of celestial bodies. Now, new evidence reveals that these astronomers, working several centuries B.C.E., also employed sophisticated geometric methods that foreshadow the development of calculus. Historians had thought such techniques did not emerge until more than 1400 years later, in 14th century Europe.

jones_supa writes that on Tuesday, 26th January, Aalto University's Metsähovi observatory located in Kirkkonummi, Finland, detected a rare anomaly in time reported by the GPS system (Google translation). The automatic monitoring system of a hydrogen maser atomic clock triggered an alarm which reported a deviation of 13.7 microseconds. While this is tiny, it is a sign of a problem somewhere, and does not exclude the possibility of larger timekeeping problems happening. The specific source of the problem is not known, but candidates are a faulty GPS satellite or an atomic clock placed in one. Particle flare-up from sun is unlikely, as the observatory has currently not detected unusually high activity from sun.

sciencehabit writes: The solar system may have a new ninth planet. Today, two scientists announced evidence that a body nearly the size of Neptune — but as yet unseen — orbits the sun every 15,000 years. During the solar system's infancy 4.5 billion years ago, they say, the giant planet was knocked out of the planet-forming region near the sun. Slowed down by gas, the planet settled into a distant elliptical orbit, where it still lurks today. Here's a link to the full academic paper published in The Astronomical Journal.

schwit1 writes: Newly published research into a supernova under observation since June has found it to be the most powerful known to modern science. "This one, called ASASSN-15lh, is about 3.8 billion light years away, 200 times more powerful than most supernovas, and twice as bright as the previous record holder. It shines 20 times brighter than the combined output of the Milky Way's 100 billion stars, and in the last six months, it has spewed as much energy as the sun would in 10 lifetimes, says Krzysztof Stanek of the Ohio State University, co-principal investigator of the All Sky Automated Survey for SuperNovae (ASAS-SN) network that spotted the explosion." The explosion doesn't fit well with current theories of supernova energy release, so astronomers are working to figure out its unusual mechanics.

An anonymous reader writes: NASA has set up a new Planetary Defense Coordination Office to detect and track near-Earth objects. CNN reports: "The department, which includes the position of Planetary Defense Officer, is managed by the Planetary Science Division of the Science Mission Directorate at NASA Headquarters in Washington DC. And its mission includes the early detection of potentially hazardous objects (PHOs) — asteroids and comets which get within 0.05 Astronomical Units of Earth's orbit around the sun (7.5 million kilometers) and are large enough, greater than around 30 — 50 meters (98 — 164 feet), to reach the Earth's surface." Bruce Willis had no comment on his level of involvement in the new agency.