A new system uses a smartphone to detect toxin-producing algae in water within 15 minutes.

A new measurement of "Earth's heartbeat," the dynamic between oxygen and the productivity on Earth, shows animals can regulate the planet's oxygen levels.

Researchers examined more than a million corals one-by-one for a new study on what we can do to save reefs in the Indian and Pacific Oceans.

The way diatoms—algae that produces 20% of the Earth's oxygen—harness solar energy could lead to cheaper, more efficient biofuels.

Genes that red algae stole from bacteria to better adapt to hot springs could pave the way for designer algae that make fuel or clean up pollution.

Diatoms aren't immune to deadly viral infections as researchers once thought, but their deaths may help other algae survive.

"When the water off the coast of California starts to look like you're in the Caribbean, that's really weird."