Mars has long been seen as one of humanity’s best hopes for colonization, but its harsh environment, freezing temperatures, ...

NASA’s MAVEN spacecraft has confirmed, through nearly a decade of orbital observations, that solar wind physically strips gas ...

NASA’s twin ESCAPADE spacecraft will uncover how the Sun stripped Mars of its atmosphere. Mars is a very different world ...

Mars may look like a frozen desert today, but new evidence suggests its watery past didn’t simply fade away quietly—it may ...

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Add Yahoo as a preferred source to see more of our stories on Google. An artist’s concept depicting NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft in orbit around Mars. (NASA/Goddard ...

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a cold, desert world within our solar system. It has a very thin atmosphere, but ...

Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere, which kept it warm enough to support flowing water on its surface. So, ...

Mars is a very dry planet with very little water in its atmosphere and hardly any clouds, so you might not expect it to have ...

The criteria for finding an Earth-like planet unofficially comes down to two things: water and the habitable zone. But a ...

Lightning long ago escaped the bounds of Earth’s atmosphere—scientists have already discovered lightning blazing through the skies of Jupiter, Saturn and Neptune. Now they think they’ve found it on ...