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Earth and Mars could share a life history

While life is everywhere on Earth, there is much debate about how it began. Some believe it originated naturally from the chemistry found on our planet as it evolved. Others hypothesize that life—or at least the building ...

dateJul 07, 2015 in Space Exploration
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Measuring the mass of a Mars-size exoplanet

Determining the size of an Earth-size exoplanet by the amount of starlight it blocks hundreds of light-years away once was the realm of science fiction. Measuring the mass of such a small planet based on its gravity was ...

dateJun 18, 2015 in Astronomy
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