Geologists say Hawaii’s Kilauea volcano shot lava as high as 1,000 feet into the air during its most recent eruptive episode.

But moonbows are much more rare than rainbows—the natural phenomenon happens only when the moon is very low, the sky is dark, and rain is falling opposite the moon. Check out the biggest unsolved ...

Discover 10 breathtaking images of Earth from space, featuring volcanic eruptions, heart-shaped lakes, shifting dunes, and ...