Photosynthesis

Biological activity in some Arctic lakes has ratcheted up dramatically over the past 150 years.

They work the night shift, let their roots die, and fend off thirsty predators to conserve every precious drop.

A NASA satellite has photographed a particularly artful bloom in the Arabian Sea.

Moisture emitted by a single leaf provides clues to imminent thunderstorms and tornadoes.

If the history of life could be rewound and replayed, many of the same innovations would reappear. What’s that mean for life on other planets?

New evidence that manganese paved the way for photosynthesis.

River bacteria can break down plant-based carbon, exhaling it as carbon dioxide.

The planet might once have been dominated by microbes that used a molecule other than chlorophyll to harness Sun’s rays.

A mysterious layer of the ocean seems to trap carbon, a new study shows.

Chemical reactions in early Earth's crust may have provided oxygen to ancient microbes.