Author: Allie Skalnik

Everyday Earth clouds get their start with a bit of salt or dust. Not so the Red Planet’s Arsia Mons Elongated Cloud, computer models suggest.

This year’s photomicrography contest captured the wonders of the very small, from flying ink droplets to the most adorable jumping spider you’ve ever seen.

In heat wave-like temperatures, coast redwoods’ photosynthesis slows down, which may put one of Earth’s most efficient carbon storers in jeopardy.