Glaciers beneath the dusty sands of Mars contain enough water to coat the planet with more than three feet of ice, a new study shows.
The primordial planet believed to have smashed into baby Earth, creating a cloud of debris that eventually formed into the moon, was chemically a near-match to Earth.
As far as rocks on any planet go, this formation looks fascinating -- but these rocks are on Mars and they hold clues to TWO periods of water on the red planet.
Two vast underground domes are buried under central Australia that researchers have realized are the scars of the biggest and most powerful asteroid impact yet found on Earth.
The moon's past was livelier and more complex than scientists had thought, new results from China's first lunar rover suggest.
Saturn's icy moon Enceladus is showing definite signs of hydrothermal activity -- similar activity that is found along deep sea vents on Earth where water is heated and minerals are formed.
Bouncing radar off Veuns' surface, radio astronomers have built up a detailed, and beautiful, view of the planet's landscape without leaving Earth.
Engineers at NASA's Jet Propulsion Laboratory are scrambling to figure out the cause of an electrical glitch on the Mars rover Curiosity which stopped science operations cold.
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