Just 14 million years after the start of the solar system, Earth and the rest of the inner planets were inundated with water, setting back the clock for when life could have evolved.
Scientists have found two families of comets in the developing Beta Pictoris star system, located about 64 million light-years from Earth, including one group that appears to be remnants of a smashed-up protoplanet.
The first-ever photos of water ice near Mercury's north pole have come down to Earth, and they have quite a story to tell.
Titan's mysterious south pole vortex is much colder than expected... and it's laced with a highly toxic compound. Continue reading →
Check out some of the coolest images of the planet from space and below.
Moonlets in Saturn's F-ring are being created and destroyed at an astonishing rate by the gas giant's tidal chaos. Continue reading →
Scientists believe they have spotted a rocky planet in the making around a young, sun-like star 1,200 light years away in the constellation Vela.
A zircon crystal from Western Australia moves the date Earth's first solid crust began to cool from 600 million years ago to 100 million years ago.
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