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Asteroid-tracking proposal wins $25,000 prize

Space

Asteroid-tracking proposal wins $25,000 prize

The Planetary Society, a non-profit group, hopes the prize will spur space agencies to develop plans to protect Earth from potential impacts

News

Meteorites: How big is safe?

Space

Meteorites: How big is safe?

Features

Largest asteroid to come near Earth for 19 years

Space

Largest asteroid to come near Earth for 19 years

News

Comet samples are surprisingly asteroid-like

Space

Comet samples are surprisingly asteroid-like

News

Risk of Mars impact drops to 1 in 10,000

Space

Risk of Mars impact drops to 1 in 10,000

News

Meteor shower's origin remains a mystery

Space

Meteor shower's origin remains a mystery

News

Possible Mars impact highlights risk to Earth

Space

Possible Mars impact highlights risk to Earth

News

Space

Asteroid may hit Mars in January

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Small asteroids can pack a mighty punch

Space

Small asteroids can pack a mighty punch

News

Space probe targets third comet after second vanishes

Space

Space probe targets third comet after second vanishes

After studying one comet, the Deep Impact spacecraft was set to visit another called Boethin – but it mysteriously vanished, forcing NASA to target a backup

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Earth

Did a comet kick-start Earth's plate tectonics?

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Space

Deflected asteroids may keep coming back

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Space

Astronomers defend asteroid warning mix-up

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Space

NASA blasted for ignoring smaller asteroids

News