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"Almost every critic has given Alfonso Cuar\u00F3n's\u00A0Gravity a phenomenal review, citing the viewer's visceral experience as they float through space with Sandra Bullock and George Clooney. But while nearly no one doubts that Gravity is a great movie, how do they feel about the science behind it?\nDespite favorable reviews, some media outlets shone a light on the inaccuracies in Gravity, which is about the survival of two astronauts after their space station is smashed by debris. It also, however, gets a lot right. Here are some\u00A0Gravity facts that match up with the real world (warning: spoilers ahead):\nSee also: 25 Awe-Inspiring Images of the Milky Way Galaxy\n1. GPS works in space\nNASA medical engineer Ryan Stone (played by Sandra Bullock) says \"GPS is down\" in the film's trailer, and it turns out that global positioning systems can pinpoint coordinates outside Earth; this is possible because GPS satellites orbit 20,000 kilometers (12,427 miles) above ground \u2014 that's 19,650 kilometers (12,210 miles) higher than the Hubble Space Telescope, which is where the astronauts are going.\n2. The space suits, shuttle and space station are on point\nBy all accounts,\u00A0Cuar\u00F3n crafted his sets to look like the real deal. Everything from the narrow corridors of the International Space Station to the design of the Chinese space vehicle  Shenzhou, are all accurate, according to multiple reviews.\n3. The space physics mostly check out\nMany people have seen the part of Gravity's trailer in which Stone whirls hopelessly into the black abyss \u2014 well, that can happen. All it takes is an explosion to cause that motion, which can potentially go on forever. What's more, when debris rocks the space station, triggering the movie's plot line, particles hurl in all directions; this makes sense, because without gravity to alter the routes of objects flying through space, they will continue along their initial route.\nBuzz Aldrin, the second person to walk on the moon, said that Gravity's portrayal of movement inside of space vehicles was also well done, according to The Hollywood Reporter.\n\"I was happy to see someone moving around the spacecraft the way\u00A0George\u00A0Clooney\u00A0was,\" Aldrin wrote in his review. \"It really points out the degree of confusion and bumping into people.\"\nThere were some missteps, however, perhaps the most glaring of which was pointed out by\u00A0Slate's Phil Plait. At some point in the plot, Stone's leg gets caught in a parachute shroud line from the Soyuz escape capsule, while she struggles to hold onto a tether that is clipped to NASA veteran Matt Kowalski's (played by Clooney) spacesuit. If Stone lets go, the movie implies, Kowalski will disappear into the final frontier. Ultimately, he unclips himself, and does just that.\nThe problem, however, is that both Stone and Kowalski had stopped moving, so their \"velocity relative to the space station was zero,\" as Plait explained it. \"Gravity wasn\u2019t pulling Clooney away from Bullock; there were essentially no forces on him at all, so he had no weight for Bullock to bear! All she had to do was give the tether a gentle tug and Clooney would\u2019ve been safely pulled toward her.\"\n4. The constellations match up\nIf you look closely, you'll see that the background of this space thriller correctly includes parts of Orion,\u00A0Pleiades and Taurus.\n5. Clooney's cosmonaut competitor\nKowalski eventually sets the record for most time spent spacewalking, but before doing that, he mentions the man whose record he fictionally beat: cosmonaut\u00A0Anatoly Solovyev. The Russian spaceman ventured outside into space 16 times for a total time of just over 82 hours (or about three-and-a-half days) before he retired.\nBONUS:\u00A010 Brilliant Photos of the Moon and Jupiter\u00A0\nImage: Flickr, OeWF"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2013/10/05/gravity-right-facts/>