News tagged with planets

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Sun-like stars reveal their ages

(Phys.org) —Defining what makes a star "Sun-like" is as difficult as defining what makes a planet "Earth-like." A solar twin should have a temperature, mass, and spectral type similar to our Sun. We also ...

Jul 10, 2014
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Ringed planet dances in raw Cassini images

We space people are very lucky to get glimpses of Saturn (and other planets!) regularly through the raw images feature on a few spacecraft websites. This allows anyone to get a hold of the pictures as they ...

Jul 08, 2014
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When life went global

"An origin of life is not the same as an origin of a biosphere—that's an important distinction," says David Grinspoon, a planetary scientist and curator of astrobiology for the Denver Museum of Nature & ...

Jul 07, 2014
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Under the bright lights of an aging sun

Life as we know it on Earth is linked to our star, the Sun, which provides our planet with just the right amount of heat and energy for liquid water to be stable in our lakes, rivers and oceans. However, ...

Jul 04, 2014
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