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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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Light echo helps researchers map out parts of galaxy

Thousands of years before humans invented agriculture, a bright burst of X-rays left the dense neutron star Circinus X-1, located in the faint Southern constellation Circinus. A year and a half ago, those X-rays were detected ...

dateJul 03, 2015 in Astronomy
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What is a terrestrial planet?

In studying our solar system over the course of many centuries, astronomers learned a great deal about the types of planets that exist in our universe. This knowledge has since expanded thanks to the discovery of extrasolar ...

dateJul 02, 2015 in Space Exploration
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'Map of life' predicts ET. (So where is he?)

Extra-terrestrials that resemble humans should have evolved on other, Earth-like planets, making it increasingly paradoxical that we still appear to be alone in the universe, the author of a new study on convergent evolution ...

dateJul 02, 2015 in Evolution
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Helping Europe prepare for asteroid risk

Each year, astronomers worldwide discover over 1000 new asteroids or other space rocks that could strike our planet. And if one is spotted heading towards Earth, experts working in ESA and national emergency offices need ...

dateJul 01, 2015 in Space Exploration
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