Space
Most pristine known asteroid is denser than granite
The lumpy asteroid Lutetia may be a whole, unbroken building block left nearly untouched since the solar system's birth
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Space
First icy star-disc hints at source of Earth’s water
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Life
Comets may be creating oceans on alien planet
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Environment
Venus has an ozone layer, too
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Space
Bright ‘hollows’ on Mercury are unique in solar system
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Space
Missing planet explains solar system’s structure
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Space
Pluto’s icy exterior may conceal an ocean
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Space
Probes launch to study moon’s interior
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Earth
Giant Mars crater hints at steamy past
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Space
Extraterrestrial dust reveals asteroid’s past and future
Dust that slipped into Japan's Hayabusa probe when it touched down on the asteroid Itokawa in 2005 pieces together its past and foretells its bleak future
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Life
Evidence for Mars floods all dried up?
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Space
Moon may be 200 million years younger than thought
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Life
Dark streaks on Mars bolster case for liquid water
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Space
Water-scouting probe to take off for Jupiter
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