Space weather experts warn that a "moderate" geomagnetic storm could rock Earth over the weekend, potentially lighting the ...

The Vela explosion stands out as the most dramatic example, occurring when our planet was emerging from the last ice age around 13,000 years ago.

A giant hole has ripped open on the sun, blasting Earth with a high-speed stream of charged particles that could trigger ...

For hundreds of millions of years, a top-shaped rubble pile called Bennu has orbited the sun in relative isolation ... Bennu has about a 1-in-2,700 chance of hitting Earth. The team—led by ...

Summer brings heat, sun and outdoor fun. But it also means protecting your skin from sunburn and harmful ultraviolet sun rays ...

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Scientists using NASA's Hubble Space Telescope went looking for evidence of one phenomenon and found quite another.