Solar System

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    Astronomers have discovered a planet with about the same mass as the Earth. The planet orbits a star in our closest neighboring system - Alpha Centauri.
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    In this interview, Jen Eigenbrode talks about how the SAM instrument will search for the organic molecules that would indicate whether Mars ever could have supported life.
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    Using computer simulations, researchers have predicted the amount of methane that might be seen by the Curiosity rover. Detecting methane on Mars could be significant in the search for signs of life on the red planet.
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    In a joint effort, citizen scientists and astronomers have discovered a planet orbiting twin suns that in turn is orbited by a second distant pair of stars.
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    The first Martian rock NASA’s Curiosity rover has reached out to touch presents a more varied composition than expected.
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    A meteorite that landed in the Moroccan desert 14 months ago is providing more information about Mars. The Tissint meteorite shows evidence that it interacted with water on the martian surface before it made its long journey to Earth.
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    A new study has found that Vesta once had a molten, swirling mass of fluid inside the asteroid that generated a magnetic field.
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    A new analysis of Huygens data reveals that, after touching down on Titan, the probe spent 10 seconds bouncing, sliding and wobbling its way to rest.
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    New research suggests that a rocky planet twice the size of Earth and orbiting a nearby star is a diamond planet. It may be the first glimpse of a rocky world with a fundamentally different chemistry than our own planet.
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    Michael Meyer, the lead scientist for NASA’s Mars program, talks about his role in developing the Curiosity rover that’s now exploring the surface of Mars.
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    Tiny pieces of rock captured from the astroid Itokawa by the Japanese mission Hayabusa are now being analyzed. It is the first time asteroid samples have been returned to Earth, and they could help astrobiologists understand the origin of the Solar System.
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    Adam Steltzner, the Entry, Descent and Landing Phase Lead for Curiosity, explains why the Mars rover matters to ordinary people. Space exploration is an expensive endeavor, but the benefits that missions bring can be wide-reaching in terms of education and economic payback.
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    A new study shows that Venus has a surprisingly cold region high in its atmosphere, where carbon dioxide might freeze out as ice or snow.
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    Curiosity is preparing to take its first scoop of martian soil for analysis. Soil samples will be used for key experiments on the rover to test whether or not environmental conditions in Gale Crater were once favorable for microbial life.
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    By analyzing observations of Titan collected over the past 30 years, scientists have found that changing seasons affect the Saturnian moon more than previously thought.
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