Media

UHD Spec Stomps on Current Blu-ray Spec, But Will Consumers Notice? 233

Posted by timothy
from the is-your-nose-on-the-glass? dept.
An anonymous reader writes Details have emerged on the new UHD Blu-ray spec and players set to start shipping this summer. UHD promises resolutions 4X greater than Blu-ray 1080p as well as much higher data rates, enhanced color space and more audio options. But, will consumers care, and will they be willing to upgrade their HDTV's, AV Receivers, and Blu-ray players to adopt a new format whose benefits may only be realized on ultra large displays or close viewing distances? The article makes the interesting point that UHD isn't synonymous with 4K, even if both handily beat the resolution of most household displays.
Space

10 New Rosetta Images Reveal Comet 67P In All Its Glory 28

Posted by Soulskill
from the hooray-science dept.
sciencehabit writes: The first scientific results from Rosetta at comet 67P have been published, and they detail a surprising diversity of features on the 4-kilometer-long duck-shaped comet. The discoveries include images from Rosetta's main science camera, OSIRIS, which reveal 67P to be a far more varied place than anyone expected. The article summarizes a trove of scientific papers that were published today about comet 67P/Churyumov-Gerasimenko. The best part? They're all freely available.
Science

Scientists Slow the Speed of Light 138

Posted by Soulskill
from the lazy-particles dept.
lightbox32 sends news that scientists have found a way to slow individual photons within a beam of light. Their work was published today in Science Express (abstract, pre-print). The researchers liken a light beam to a team of cyclists — while the group as a whole moves at a constant speed, individual riders may occasionally drop back or move forward. They decided to focus on the individual photons, rather than measuring the beam as a whole. The researchers imposed a particular pattern on a photon, then raced it against another photon, and found that the two arrived at their destination at slightly different times. The work demonstrates that, after passing the light beam through a mask, photons move more slowly through space. Crucially, this is very different to the slowing effect of passing light through a medium such as glass or water, where the light is only slowed during the time it is passing through the material—it returns to the speed of light after it comes out the other side. The effect of passing the light through the mask is to limit the top speed at which the photons can travel.
Space

Rare Astronomical Event Will See Triple Moon Shadows On Jupiter 53

Posted by Soulskill
from the pretty-pictures dept.
hypnosec writes Stargazers are in for a treat: they will be able to witness a rare astronomical event early tomorrow morning (January 24, 2015) where shadows of three of Jupiter's largest moons — Io, Europa, and Callisto — will fall upon Jupiter simultaneously. Griffith Observatory in Los Angeles will provide a live online broadcast on its Livestream channel. It will begin on January 24 at 0430 GMT (January 23 at 11:30 PM EST, 8:30 PM PST) and end at 0700 GMT (2:00 AM EST, 11:00 PM PST). They've also posted a short animated video of how the event will appear.
NASA

The Camera That Changed the Universe 76

Posted by samzenpus
from the all-the-better-to-see-it-with dept.
StartsWithABang writes As the Hubble Space Telescope gets set to celebrate the 25th anniversary of opening its eyes to the Universe, it's important to realize that the first four years of operations were kind of a disaster. It wasn't until they corrected the flawed primary mirror and installed an upgraded camera — the Wide Field Planetary Camera 2 (WFPC2) — that the Universe truly came into focus. From 1993 to 2009, this workhorse camera literally changed our view of the Universe, and we're pushing even past those limits today.
Earth

Science By Democracy Doesn't Work 410

Posted by timothy
from the just-ask-ex-planet-pluto dept.
StartsWithABang writes The US Senate just voted on whether climate change is a hoax, knowing full well that debates or votes don't change what is or isn't scientifically true or valid. Nevertheless, debates have always been a thing in science, and they do have their place: in raising what points would be needed to validate, robustly confirm or refute competing explanations, theories or ideas. The greatest scientific debate in all of history — along with its conclusions — illustrates exactly this.
Space

The Paradoxes That Threaten To Tear Modern Cosmology Apart 228

Posted by samzenpus
from the nobody-knows dept.
KentuckyFC writes Revolutions in science often come from the study of seemingly unresolvable paradoxes. So an interesting exercise is to list the paradoxes associated with current ideas in science. One cosmologist has done just that by exploring the paradoxes associated with well-established ideas and observations about the structure and origin of the universe. Perhaps the most dramatic of these paradoxes comes from the idea that the universe must be expanding. What's curious about this expansion is that space, and the vacuum associated with it, must somehow be created in this process. And yet nobody knows how this can occur. What's more, there is an energy associated with any given volume of the universe. If that volume increases, the inescapable conclusion is that the energy must increase as well. So much for conservation of energy. And even the amount of energy associated with the vacuum is a puzzle with different calculations contradicting each other by 120 orders of magnitude. Clearly, anybody who can resolve these problems has a bright future in science but may also end up tearing modern cosmology apart.
Communications

NJ Museum Revives TIROS Satellite Dish After 40 Years 28

Posted by timothy
from the zip-zooming-along dept.
evanak writes TIROS was NASA's Television Infrared Observation Satellite. It launched in April 1960. One of the ground tracking stations was located at the U.S. Army's secret "Camps Evans" Signals Corps electronics R&D laboratory. That laboratory (originally a Marconi wireless telegraph lab) became the InfoAge Science Center in the 2000s. [Monday], after many years of restoration, InfoAge volunteers (led by Princeton U. professor Dan Marlowe) successfully received data from space. The dish is now operating for the first time in 40 years! The received data are in very raw form, but there is a clear peak riding on top of the noise background at 0.4 MHz (actually 1420.4 MHz), which is the well-known 21 cm radiation from the Milky Way. The dish was pointing south at an elevation of 45 degrees above the horizon.
PC Games (Games)

Sid Meier's New Game Is About Starships 226

Posted by Soulskill
from the klingons-off-the-starboard-bow dept.
jones_supa writes: The next game from the mind of veteran strategy and simulation game designer Sid Meier has been revealed. 2K and Firaxis Games have announced Sid Meier's Starships, a turn-based interstellar strategy game scheduled to arrive in early 2015 for Windows, OS X, and iOS (iPad). In the game, you control a fleet of starships as you journey through the galaxy to complete missions, protect planets and their inhabitants, and build a planetary federation. As you trek through the stars, you will be challenged to expand your federation's influence and reach. You shall also amass futuristic technology and take part in combat using a deep roster of customizable ships. When designing Starships, Meier was intrigued by the idea of exploring the next chapter in the story of Civilization: Beyond Earth. "What happens after we colonize our new home and eventually build starships to take to the stars? What has become of our long-lost brothers and sisters from the planet Earth," Meier asks. "My goal was to create an experience that focuses on starship design and combat within a universe filled with interstellar adventure, diplomacy, and exploration."
Space

Astronomers Record Mystery Radio Signals From 5.5 Billion Light Years Away 119

Posted by samzenpus
from the from-the-depths-of-space dept.
sarahnaomi writes For the first time ever, astronomers have captured an enormous radio wave burst in real time, bringing us one step closer to understanding their origins. These fleeting eruptions, called blitzars or FRBs (Fast Radio Bursts), are truly bizarre cosmic phenomena. In the span of a millisecond, they emit as much radiation as the Sun does over a million years. But unlike other super-luminous events that span multiple wavelengths—gamma ray bursts or supernovae, for example—blitzars emit all that energy in a tiny band of the radio light spectrum. Adding to the mystery is the rarity of blitzar sightings. Since these bursts were first discovered in 2007 with Australia's Parkes Telescope, ten have been identified, the latest of which was the first to be imaged in real time.
Space

Iran Forced To Cancel Its Space Program 141

Posted by samzenpus
from the no-space-for-you dept.
MarkWhittington writes The War is Boring blog reported that the Islamic Republic of Iran has been obliged to cancel its nascent space program. This development means that former Iranian President Mahmoud Ahmadinejad's dream of being the first astronaut to be launched into space by Iran have been dashed. Ironically, Anousheh Ansari, who was obliged to flee to the United States from Iran to avoid religious oppression, remains the only Iranian-born space traveler. She did it by going to Texas, making her fortune in the electronics business, and paying for her trip to the International Space Station.
Mars

Elon Musk's Proposed Internet-by-Satellite System Could Link With Mars Colonies 104

Posted by timothy
from the in-case-you're-on-mars dept.
MojoKid writes You have to hand it to Elon Musk, who has occasionally been referred to as a real life "Tony Stark." The man helped to co-found PayPal and Tesla Motors. Musk also helms SpaceX, which just recently made its fifth successful trip the International Space Station (ISS) to deliver supplies via the Dragon capsule. The secondary mission of the latest ISS launch resulted in the "successful failure" of the Falcon 9 rocket, which Musk described as a Rapid Unscheduled Disassembly (RUD) event. In addition to his Hyperloop transit side project, Musk is eyeing a space-based Internet network that would be comprised of hundred of micro satellites orbiting roughly 750 miles above Earth. The so-called "Space Internet" would provide faster data speeds than traditional communications satellites that have a geosynchronous orbit of roughly 22,000 miles. Musk hopes that the service will eventually grow to become "a giant global Internet service provider," reaching over three billion people who are currently either without Internet service or only have access to low-speed connections. And this wouldn't be a Musk venture without reaching for some overly ambitious goal. The satellite network would truly become a "Space Internet" platform, as it would form the basis for a direct communications link between Earth and Mars. It's the coming thing.
Earth

Analysis Suggests Solar System Contains Massive Trans-Neptunian Objects 170

Posted by timothy
from the I'm-also-waiting-to-be-discovered dept.
BarbaraHudson writes NBC News reports that at least two planets larger than Earth likely lurk far beyond Pluto, just waiting to be discovered, a new analysis of the orbits of "extreme trans-Neptunian objects" (ETNOs) suggests. The potential undiscovered worlds would be more massive than Earth and would lie about 200 AU or more from the sun — so far away that they'd be very difficult, if not impossible, to spot with current instruments. "The exact number is uncertain, given that the data that we have is limited, but our calculations suggest that there are at least two planets, and probably more, within the confines of our solar system," lead author Carlos de la Fuente Marcos, of the Complutense University of Madrid, said. (Here's the longer version at Space.com.)
Hardware Hacking

Engineer Combines Xbox One, PS4 Into Epic 'PlayBox' Laptop 78

Posted by timothy
from the bipartisan dept.
MojoKid writes We can finally stop arguing over which is the superior game console, the PlayStation 4 or Xbox One. Quite frankly, it's a pointless debate, and it took a self-taught engineer to put the argument to rest, which he did by combining both game systems into a 22-inch laptop. Meet the "PlayBox," a gaming laptop that's equal parts Xbox One and PS4 rolled into one. The PlayBox wins the argument because it allows you to play games on either system, and when it comes down to it, the ability to play games is all that matters. Built for a "specific customer," the owner of this prototype system needn't worry about exclusives since he now has a system that can play them all, and do it while taking up no more space than a single console.
Space

Virgin Galactic To Launch 2,400 Comm. Satellites To Offer Ubiquitous Broadband 123

Posted by samzenpus
from the space-web dept.
coondoggie writes Virgin Galactic's Richard Branson this week said he wants to launch as many as 2,400 small satellites in an effort to set up a constellation capable of bringing broadband communications through a company called OneWeb to millions of people who do not have it. He said he plans to initially launch a low-earth-orbit satellite constellation of 648 satellites to get the project rolling.
Transportation

Elon Musk Plans To Build Hyperloop Test Track 165

Posted by samzenpus
from the do-it-yourself dept.
An anonymous reader writes that Elon Musk wants to speed up the development of his proposed 800-mph tube transport. "Billionaire and entrepreneur Elon Musk is getting more hands-on with the Hyperloop. Musk, who heads up both space transportation outfit SpaceX and electric-vehicle maker Tesla Motors, casually announced via Twitter on Thursday that he's decided to help accelerate development of his vision for near-supersonic tube transportation, first outlined in August 2013. Musk said he will build a five-mile test track for the still-theoretical system for students and companies to use. A possible location would be Texas, he added, where presumably there is plenty of flat land to go around."
Space

Exoplanet Hunting NGTS Telescope Array Achieves First Light 19

Posted by timothy
from the well-lookit dept.
Zothecula writes The Next-Generation Transit Survey (NGTS) array, built by a UK, German and Swiss consortium, has achieved first light at the Paranal Observatory in Chile. The installation is designed to search for exoplanets between two and eight times the size of Earth, studying them as they pass in front of their parent star.
ISS

Ammonia Leak Alarm On the ISS Forces Evacuation of US Side: Crew Safe 95

Posted by Soulskill
from the send-up-a-plumber dept.
New submitter BabelBuilder writes: An alarm signaling a possible ammonia leak aboard the ISS this morning caused the crew to evacuate the U.S. side of the station. All crew aboard the station are safe. "Flight controllers in Mission Control at NASA's Johnson Space Center in Houston saw an increase in pressure in the station's water loop for thermal control system B then later saw a cabin pressure increase that could be indicative of an ammonia leak in the worst case scenario. Acting conservatively to protect for the worst case scenario, the crew was directed to isolate themselves in the Russian segment while the teams are evaluating the situation." They don't yet know whether it was caused by a faulty sensor, a problem in the relay box, or another malfunction.
Operating Systems

OpenBSD's Kernel Gets W^X Treatment On Amd64 84

Posted by Soulskill
from the write-stuff dept.
New submitter brynet tips this news from Theo de Raadt: Over the last two months Mike Larkin (mlarkin@) modified the amd64 kernel to follow the W^X principles. It started as a humble exercise to fix the .rodata segment, and kind of went crazy. As a result, no part of the kernel address space is writeable and executable simultaneously. At least that is the idea, modulo mistakes. Final attention to detail (which some of you experienced in buggy drafts in snapshots) was to make the MP and ACPI trampolines follow W^X, furthermore they are unmapped when not required. Final picture is many architectures were improved, but amd64 and sparc64 look the best due to MMU features available to service the W^X model. The entire safety model is also improved by a limited form of kernel ASLR (the code segment does not move around yet, but data and page table ASLR is fairly good."
Cellphones

Ars: Samsung Gear VR Is Today's Best Virtual Reality 74

Posted by Soulskill
from the jury-still-out-on-today's-best-actual-reality dept.
An anonymous reader writes: Samsung took a distinctly different tack from Oculus VR in developing virtual reality tech. Whereas Oculus has a dedicated device, Samsung simply has a high-tech piece of headgear that you strap a Galaxy Note 4 phone into. A review popped up at Ars Technica after a month using the device, and they say it works surprisingly well. Quoting: "Though the weight of the two units is comparable, the Gear VR benefits from a strap system that distributes that weight on the upper forehead and the back of the skull rather than through an elastic death grip around the eye area."

They still say a purchase is hard to justify, simply because the content selection is lacking. But as that improves, the price tag will become worth it. "Simple, minimally interactive virtual reality experiences like The Deep, BluVR, and Titans of Space have become go-to apps when passing the Gear VR around a party for friends to check out. It's incredible just sitting in place and following along with your gaze as sea life or entire planets fly by in sharp, well-rendered, 360-degree glory."