It looks like a really really big sinkhole. But maybe the rules are different in Central Florida:

Diamonds may be forever, but that doesn't mean they won't lie about their age. A new study reveals that gems that were once believed to be the world's oldest diamonds are actually fragments of polishing grit left behind by some other scientists.

Science, what mysteries is the sea ready to disclose today?

Geologists "have taken to Twitter" over a proposal to remove serpentine as California's state rock because it can contain asbestos. We're on the geologists' side, because asbestos-containing minerals seem like totally appropriate symbols of California. [NYT]

In 2005, a 37-mile-long, 26-foot-wide crack opened up in Afar, Ethiopia, over the course of ten days. Turns out, it's a brand-new ocean. You just have to wait about 10 million years.