Related topics: smoking

Earth's past, made visible

New visualizations of the Earth from space provide a unique image of how the Earth has changed over the past 750 million years.

Could 2012 be the year we find extraterrestrial life?

Last year came to an exciting end with the discovery of an Earth-like planet, Kepler-22b, orbiting a sun-like star outside of our solar system. It was found by NASA’s Kepler mission and is the first planet detected orbiting ...

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