The announcement that astronomers have found a potential alien world that could be the most Earth-like exoplanet yet is raising a big question: How will scientists confirm the existence of a true alien Earth? While NASA’s planet-hunting Kepler space telescope, which discovered the newfound Earth-like planet candidate KOI 172.2, is great for finding large numbers…
What if you had a “Wayback Television Set” and could watch an entire month of ancient prehistory unfold before your eyes in real time? David Rubin of the U.S. Department of Energy’s Lawrence Berkeley National Laboratory presented just such a scenario to the American Astronomical Society (AAS) meeting when he announced the discovery of a…
Does E always equal mc²? University of Arizona physicist Andrei Lebed suspects not – and plans to try and check. Einstein’s famous equation describes the fact that energy and mass are essentially the same thing and can be converted into one other. It’s since been validated in countless experiments and calculations – indeed, many technologies…
Astronomers have spotted a new component of the Milky Way galaxy’s skeleton — a “bone” of dust and gas that contains about as much material as 100,000 suns. The newfound Milky Way bone is more than 300 light-years long but just 1 or 2 light-years wide, giving it the appearance of a slender cosmic snake,…
While innocently surveying the Cosmos, astronomers serendipitously stumbled across a particularly uncouth galaxy. NGC 660 unleashed an epic belch, an event that we could see 44 million light-years distant. This event emanated from the galaxy’s core, around the likely location of a supermassive black hole. Why did the supermassive black hole in the galaxy’s core…
The unbalanced orbit of a so-called “zombie planet” in a dusty star system has astronomers struggling to explain the exoplanet’s behavior. New observations of the planet Fomalhaut b by the Hubble Space Telescope revealed the oddball orbit, which has wild extremes between its closest and farthest points from the parent star and appears to cross…
Four years ago, NASA launched the Kepler space telescope in an attempt to learn just how common Earth-sized worlds are in the Milky Way galaxy. Now, scientists have unveiled part of the answer: About 17 percent – one in six – of Kepler’s target stars have Earth-sized worlds orbiting closer to their parent stars than…
Scientists study six astronauts in a faux spacecraft for 17 months. Most experienced some trouble sleeping — a problem that could be disastrous on a real mission.
The Large Hadron Collider will operate for two more months then shut down through 2014, allowing engineers to lay thousands more superconducting cables aimed at bringing the machine up to “full design energy.” This will vastly improve its capacity to simulate the moments after the Big Bang nearly 14 billion years ago.
Alien planets born in widely separated two-star systems face a grave danger of being booted into interstellar space, a new study suggests. Exoplanets circling a star with a far-flung stellar companion — worlds that are part of “wide binary” systems — are susceptible to violent and dramatic orbital disruptions, including outright ejection, the study found….