It's not known how diamonds acquire their color, but it is thought to come from a molecular structure distortion as the jewel forms.
The magnitude 7.8 temblor tumbled houses and left hundreds trapped under rubble. Continue reading →
About 7 million Americans live in areas where there's a potential for damaging shaking from artificial seismic events.
The Pavlof Volcano in the Aleutian Islands erupted on Sunday. See photos of the event.
The volcano — called Pavlof for the Russian name Paul or St. Paul — erupted at about 4 p.m. local time (8 p.m. EDT) Sunday.
The terrain was a key factor in some Civil War battles. Continue reading →
Beneath Earth's crust is the mantle, a super-thick layer of slow-moving rock so deep below the surface that no one has been able to reach it. Here's why it's worth the effort to keep trying.
The chasm is nearly the size of a basketball court. Continue reading →
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