Scientists have analyzed ancient DNA and compared more than 400 fossils from 17 natural history museums to figure out how and why extinct sloths got so big.

Oregon discovered a $1.5 trillion lithium deposit. Liquid gold is essential for electric vehicles, which means Elon Musk ...

Winners of the annual prize get their mortgage or rent paid for an entire year, and their school gets a $2,500 donation. Runners-up don't go empty handed, either.

Elon Musk's Tesla could be set to be benefit massively after a lithium deposit suspected of being the world's largest has ...