gravity
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Science confirms that gravitational waves exist
At last, scientists have validated a key part of Einstein's general theory of relativity. The National Science Foundation, Caltech and MIT have confirmed the existence of gravitational waves, or ripples in spacetime. Their two LIGO (Laser Interferometer Gravitational-wave Observatory) detectors measured atomic-scale differences on September 14th, 2015 that point to the collision of black holes (also a new discovery) 1.3 billion years ago, triggering gravity ripples that only just reached Earth. There have long been hints of these waves, but hard evidence has proven elusive until now.
ESA craft will prove that you can measure gravity waves in space
Scientists have spent ages searching for gravity waves from the safety of Earth, but they haven't had the chance to study those waves in space, where they could help make sense of black holes and other objects that distort spacetime. They're one step closer to getting that shot, though. The European Space Agency is almost ready to launch a vehicle, LISA Pathfinder, that will demonstrate the viability of measuring gravity waves in space. When it begins testing in March, Pathfinder won't actually measure gravitational effects at all. It'll instead look for extremely minute (picometer-level) changes between two test masses within the spacecraft, proving that you can achieve the extreme level of precision needed for a gravity wave detector.
Watch gravity waves ripple through Earth's atmosphere
You might think of gravity as an invisible force here on Earth, but that's not entirely true... if you have the right computer simulation, that is. Researchers at the National Center for Atmospheric Research have developed a climate model that shows the gravity waves in the upper atmosphere, where their amplitude is strong enough to create huge ripples. The trick is a higher-resolution model that replicates the waves at their source, and follows them on their way up. As you can see here, the results are dramatic -- gravity is virtually invisible near the surface, but it's impossible to miss when you're 60 miles up.
Dark matter is (probably) more complex than you think
Scientists typically believe that dark matter, for all of its mystery, behaves in a simple way: if one clump encounters another, the two interact solely through gravity. However, researchers using both Hubble and the Very Large Telescope have published findings which suggest that there's more involved. They've noticed dark matter (the blue lines in this picture) lagging behind a galaxy due to friction, hinting that there are factors beyond gravity at work. It's not certain whether the source of this friction is a familiar phenomenon or something entirely undiscovered, but it's definitely not the usual culprit.
The Big Picture: A far-away supernova split into four
Gravity can play a lot of tricks with light, and we're not just talking about black holes. Take this recent Hubble Space Telescope discovery from UC Berkeley's Patrick Kelly, for example: those four lights are actually a distant supernova magnified and split into four images by the gravitational lensing of a giant galaxy. Besides looking cool, the image promises to be a gold mine for astrophysics. The time delay between those four lights will let researchers study both the properties of the exploding star and the galaxy, including the presence of dark matter. The best part? Due to the light's unusual path, there's a good chance that scientists will get a "rerun" in a few years if they want to see it again. [Image credit: NASA/ESA/FrontierSN/GLASS/Frontier Fields]
The black hole imagery of 'Interstellar' is helping astrophysics
You may have heard that the representation of a black hole in Interstellar was not only based on real science, but might tackle researchers' problems depicting these gravitational points. Well, that just happened -- physicist Kip Thorne and visual effects outfit Double Negative have published papers detailing the code used to portray the movie's black hole, Gargantua. Rather than trace individual light rays, they followed the paths and shapes of the millions of distorted beams traveling around the hole. The technique eliminates flickering effects that not only wreck your moviegoing experience, but prevent astrophysicists from getting a clear picture of what such a scene would look like in real life.
Super Mario World's gravity isn't possible on any planet
It goes without saying that Super Mario World is unrealistic, but have you wondered just how outlandish it is? PBS has. The broadcaster's Space Time show recently went out of its way to calculate the gravity of the game's planet based on Mario's jumps, and it turns out to be nearly eight times that of Earth. That's a figure that you don't even find on gas giants like Jupiter, and it's only feasible on stars. Moreover, Nintendo's plumber would need both superhuman strength to jump as high as he does as well as non-human blood -- the liquid would be so heavy that a heart couldn't pump it properly. Mario doesn't so much have his own world as his own universe, since there's no way that he or his environment could exist based on our understanding of physics.
Cosmic dust definitely clouded Big Bang researchers' findings
Earlier this year, researchers at the Harvard-Smithsonian Center for Astrophysics and the BICEP2 telescope in Antarctica were thought to have found evidence of gravitational waves produced during the first moments of the big bang. The discovery was heralded as one of the most important discoveries of our era -- unfortunately, the results were contaminated. While going through peer-review, astronomers began to wonder if cosmic dust may have skewed the results. Now the verdict is in: it did, but that doesn't necessarily mean the theory is false.
Ragnarok Online 2 shutting down in Southeast Asia
Ragnarok Online 2 isn't exactly taking the world by storm as of late. Following the title's closure in Korea last year, Ragnarok Online 2 is closing its doors in Singapore and Malaysia on October 9th. There is a pretty bright spot to this story, however, as Asiasoft's version of the game will accept account transfers from affected players. "Following the opening of Ragnarok 2's Odin Server to Philippine players last month, we are thrilled to be continuing the global expansion of Warpportal's Ragnarok Online 2 by welcoming all players from Southeast Asia regions!" Asiasoft posted. Southeast Asian players will not be able to access their characters until October 9th, and none of their Kafra Points will make the leap over to the new server.
Revisiting the Apollo 11 Moon landing 45 years later
Today marks the 45th anniversary of the Apollo 11 mission where Buzz Aldrin, Neil Armstrong and Michael Collins made their trip to the Moon. Sure, you could say that there's likely more tech in our pockets than what was used to allow those three to meet their lunar destiny. For whatever reason, though, powering up an Android device or an iPhone isn't nearly as impressive as the fact that we shot humans into outer space and that they walked on the nearest hard surface. Join us as we celebrate that monumental event in the gallery below. For even more, be sure to check out the recent Reddit Ask Me Anything session with Aldrin. Spoiler: he thinks that Gravity is the best depiction of astronauts in zero-G he's ever seen. [Image credit: NASA]
Big Bang researchers aren't so sure they have proof of cosmic ripples
Remember that evidence of the early gravitational waves formed by the Big Bang? Apparently, it's not as surefire as scientists once thought. The newly peer-reviewed findings note that there's "unquantifiable uncertainty" in the source data; cosmic dust in the astronomers' map of the universe may have skewed the results. More recent mapping efforts also suggest that there might have been a false signal.
New telescopes could uncover a wormhole in our own galaxy
If you're ever unlucky enough to be sucked towards a super-dense black hole, you'll soon arrive at something called the event horizon -- from which nothing can escape, including light. Thanks to a new "earth-sized" radio telescope, scientists may soon know whether you'll become stretched out infinitely ("spaghettified") or merely vaporized. Knowing which of those gory fates is correct will help astronomers in their quest to unify Einstein's theories involving planetary motion with sub-atomic quantum mechanics. Even more intriguingly, a separate telescope experiment called GRAVITY in Northern Chile may soon tell us if the Sagitarius 'A' black hole at the center of our own galaxy is actually a wormhole instead.
Must See HDTV for the week of February 25th: Oscars, Gravity and Game of Arms
The Winter Olympics are over and your normal programming schedule is back in full swing. The NHL is back for hockey fans, but Sunday is the big night for movies, as the 86th Annual Academy Awards air on ABC, hosted by Ellen Degeneres. The Best Picture category is looking particularly stacked with American Hustle, Captain Phillips, Dallas Buyers Club, Gravity, Her, Nebraska, Philomena, 12 Years a Slave and The Wolf of Wall Street. Tonight the battle of odd reality TV shows takes off as Discovery heads to the mountains for Battle of the Ozarks and AMC airs its Game of Arms arm-wrestling competition. Legit returns this week on FXX, while FX premieres season two of The Americans. Otherwise, we'd keep an eye out for Fred Armisen who is leading the band for Seth Meyers on Late Night, and kicking off a new season of Portlandia on IFC. Gravity is also coming home this week on Blu-ray and Blu-ray 3D, while gamers can pick up Plants vs. Zombies: Garden Warfare or Thief. Check after the break for trailers plus our weekly listing of what to look out for in TV, Blu-ray and gaming.
Ragnarok Online 2 closing in Korea next month
Ragnarok Online 2's days are numbered -- if you're living in South Korea, that is. If you're in North Korea, you're probably more concerned about central heating and plumbing than the availability of an MMO. Citing few players, Gravity announced that it will be taking Ragnarok Online 2 offline in Korea on December 23rd. The developer did include a hint of hope in the shutdown notice that the game could return in the future. While this may be cause for concern to those playing Ragnarok Online 2 in other regions, the company said that the service will continue for North America, Europe, and Southeast Asia.
Moon walker demo lets wannabe astronauts feel 0.17G (video)
When we saw a guy strapped to a crane, bounced between colored spots on the floor, we had to have a go find out more. Within CEATEC, there are halls filled with companies you've not yet heard of. TE Connectivity is probably one of them, regardless of the fact that it's a huge producer of data connectors, power protectors and other things that mass producers like. Now, exactly why it's got this moon gravity simulator at the front of its stand is harder to explain, but it has a lot to do with promoting TE's other products. The simulator includes a high-speed USB connector right above the harness, floor sensors that detect your landing, some other NASA-authorized parts and dynamic sensors within the balance motor that ensure that any hobbyist astronauts in training (like ourselves) don't spin out of control while bounding around at 0.6G. A computer behind the scenes continuously calculates and adjusts exactly how much lift it gives your body once you're strapped in. Then the aim to this demo is to hop between specific colored spots on the ground, which was a little harder than it sounds. We strap ourselves in after the break.
Gravity Rush may 'fall again' in new game
Team Gravity, the Sony Japan Studio group responsible for the topsy-turvy PlayStation Vita game, Gravity Rush, are working on a new project – and it resembles a sequel so far. Sony issued the brief teaser above, which asks us to "fall again" and shows Gravity Rush heroine Kat flying around a floating city – possibly a new city altogether. Gravity Rush established itself as a top Vita game as soon as it launched in May of last year. In our review, we lauded Gravity Rush for its beautiful anime-inspired world and free-spirited flying.
Ragnarok Online: Prequel coming to browsers
The long-running Ragnarok Online will seek to reinvent itself on browsers in the near future. Chinese developer Dream² acquired the license to remake the title into Ragnarok Online: Prequel (or New Ragnarok Online, according to its splash screen). Ragnarok Online: Prequel will be quite familiar to fans of the franchise. It's currently in testing for an unknown release date. The browser version is not to be confused with Ragnarok Online 2, which recently released in Europe. You can check out Ragnarok Online: Prequel's debut trailer after the jump! [Thanks to Dengar for the tip!]
Ragnarok Online 2 releases in Europe
Ragnarok Online 2: Legend of the Second has been given the keys to Europe, as Gravity Europe announced that the free-to-play title is now available to play across the continent. The game comes with a new English translation, and promises to be "easier to dive into" than the original Ragnarok Online. Gravity Managing Director Yves Bléhaut said of the launch, "For us, Ragnarok Online 2 represents a major step in the life of a brand with as high a profile as Ragnarok. First and foremost, hosting so many players on two continents simultaneously represents a technical challenge for both us and our American partner, and it's also a major editorial step as two versions of Ragnarok will coexist: RO1 for purists, and one more accessible to the general public, RO2." Ragnarok Online 2 has been rolling out worldwide over the past few months. Gravity Europe is offering two different goodie packs through "specialized media" to promote the launch. [Source: Gravity Europe press release]
Ragnarok Online 2 is now available at a Steam store near you
Ragnarok Online 2 hit Steam yesterday, to the undoubted delight of Midgardians everywhere. The game brings back some of the mainstays of the original: Familiar classes, pets, cards, and other systems have all been included in the sequel. A lot of what makes Midgard home to players is available; it just happens to be returning in an updated and immersive 3-D world. Ragnarok Online 2 is a free-to-play title and will be supported by item shop transactions. You can catch videos of the game on its Steam page. [Thanks to groovy webizen Eric for the tip!]
Double Dragon 2 remake busting chops on XBLA April 5, XBLM deals
Gravity's very-different-looking Double Dragon 2 remake, subtitled Wander of the Dragons, breathes fire onto XBLA on April 5 for 1200 MSP. After not hearing anything about it in 18 months, the game surfaced out of nowhere via an achievements listing earlier this month.Major Nelson announced its release date in his XBLA update today, which also notes Games on Demand arrivals for Assassin's Creed 3 today and WWE 13 next week on April 2.The Xbox marketplace major also announced a number of upcoming deals for the platform, in addition to those in the spring sale starting today. Up until April 1, a metamorphic army's worth of Transformers: Fall of Cybertron and War of Cybertron content is half-price including the games themselves. The following week sees several XBLA games also go half-off, including Retro City Rampage, Axel & Pixel, and the territorial vernacular showdown that is Quarrel. For more details, head to the major's office.
