Artist's rendering of the Chicxulub asteroid entering Earth's atmosphere 66 million years ago, triggering events that caused a mass extermination. Roger Harris/Science Photo library via Getty Images ...
A paper from several NASA scientists and other researchers explores whether an asteroid with a 4% chance of hitting the moon ...
A Japanese space mission that has been studying an asteroid not far from Earth will try Thursday night (Friday in Japan) to fire a copper projectile at its surface. M Michael Roston and Kenneth Chang ...
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