Most major geological events in Earth's recent history have clustered in 27.5-million-year intervals — a pattern that ...

Diamonds are made out of carbon — highly organized carbon, that is. Geologists are still guessing how diamonds formed in the ...

The new season's forecast is frightening, and we should all take a cue from Sagittarius on how to respond. Read our queer ...

These last-minute gift ideas are some of the most coveted subscriptions, e-gifts, and presents quickly delivered. Add these ...