7.5-magnitude earthquake strikes Afghanistan

Hundreds reported dead, with the death toll set to rise. The most severely affected areas are remote. As of late Monday, communications were cut off.

Where did the first dogs come from?

New DNA analysis says your pooch's ancestors were Central Asian wolves

NASA unveils Pluto Time mosaics

Mosaics of Pluto and Charon, created from your photos sent to NASA during this summer's #PlutoTime campaign.

Brain activity pattern as unique as fingerprint

Your brain scans are quintessentially you, says a new Yale study.

Neutrinos, ghost particles … what are they?

Physicist John Beacom explains the mystery of neutrinos, the almost massless and almost noninteracting elementary particle.

Video: Paddle boarding with whales

Touching juxtaposition of a classic John Lennon song with a magnificent video of whales. Video by Jaimen Hudson.

See Wednesday’s rocket launch from U.S. mid-Atlantic

Time will be 7 p.m. EDT this evening. People in a wide swath of U.S. mid-Atlantic states can see it, if skies are clear.

How close to sending people to Mars?

There's now a target date of 2030 for a manned mission to Mars. But how close are we, really, to becoming Martians?

Sea ice still too thick for Arctic shipping route

Despite climate change, sea ice will continue to make the Northwest Passage too treacherous to be a regular Arctic shipping route for decades, says study.

U.S. Southeast braces for floods

U.S. landfall looks increasingly unlikely. "Historical" flooding possible in parts of the U.S. Southeast and Mid-Atlantic.