Rocky Road: Planet hunting gets closer to Earth
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Astronomers have discovered the three lightest planets known outside the solar system, moving researchers closer to the goal of finding extrasolar planets that resemble Earth.
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The hunt for extraterrestrial life has a new tool: a system of "fingerprints" scientists will use to compare alien worlds with Earth as it has appeared over the eons.
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Description: We check in with the progress of search for extraterrestrial intelligence. A paper published this week in the journal Nature argues that for sending lots of data over long distances, it&#39;s hard
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Astronomers now have a new &quot;eye&quot; for determining the distance to certain mysterious bodies in and around our Milky Way galaxy.
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A pair of robots named ASTRO and NextSat have been working together in Earth orbit, docking, undocking, flying around and refueling, as if they have minds of their own.  Their adventures may herald a revolution in the way we explore space.
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This animation illustrates a massive collision between rocky, embryonic planets as big as mountain ranges. Such collisions form the basis of the planet-building process.
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Rocky planets with conditions suitable for life may be more common than previously thought, a study finds
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An asteroid with a wild orbit is about to zoom by our planet. Plus: Solving the mystery of the Pioneer anomaly could take decades.... A biologist finds a chunk of space shuttle Columbia. By Amit Asaravala.
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The hunt for Earth-like planets is to be stepped-up as a new mission, Corot, prepares for launch.
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Planets are built over a long period of massive collisions between rocky bodies as big as mountain ranges, astronomers announced today. New observations from NASA's Spitzer Space Telescope reveal surprisingly large dust clouds around several stars.
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WASHINGTON - Astronomers have used a network of small telescopes to discover a planet circling a far-off star. &quot;This discovery demonstrates that even humble telescopes can make huge contributions to planet
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NASA's Spitzer Space Telescope has captured for the first time enough light from planets outside our solar system, known as exoplanets, to identify signatures of molecules in their atmospheres.
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A new extra-solar planet has been identified orbiting a star 500 light years from our solar system. The discovery was made by a team using a four-inch diameter telescope to make their observations - a size
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A new class of planets has been  found orbiting stars besides our sun, in a possible giant leap  forward in the search for Earth-like planets that might harbor  life, scientists said on Tuesday.
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WASHINGTON - A tiny telescope has spotted a giant planet circling a faraway star, using a technique that could open a new phase of planetary discovery.
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A new class of planets has been found orbiting stars besides our sun, in a possible giant leap forward in the search for Earth-like planets that might harbor life, scientists said on Tuesday.
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Cold, dusty discs of debris have been clearly detected around stars in other planet-harbouring solar systems for the first time by NASA&#39;s Spitzer Space Telescope.