NASA's top planetary defense expert reveals the biggest threat isn't Hollywood-style doomsday rocks, but undiscovered 'city-killer' asteroids. While large and small threats are known, an estimated 25, ...
As mysterious as large parts of our solar system are, we're learning more and more about Mars all the time. As it turns out, the red planet has quite a lot in common with Earth, and is of particular ...
Russian investigators have prevented a giant meteorite fragment being smuggled to Britain disguised as a garden ornament, the Federal Customs Service reported Thursday.
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