If discovered, sterile neutrinos may explain dark matter.

Two potentially habitable planets in nearby system are confirmed to be rocky.

Batches of shoebox-sized satellites could improve estimates of Earth’s reflected energy.

New approach tracks key factors affecting crop yields, enabling early adaptation.

September ozone hole has shrunk by 4 million square kilometers since 2000.

Beginning 2.33 billion years ago, atmospheric oxygen built up in just 10 million years.

Technique uses vibrations generated by ocean waves to monitor ice sheet’s seasonal changes.

Aerosol emissions would slow warming but suppress rainfall.

Colette Heald studies atmospheric gases and particles, and how they affect air quality and climate.

Continental shifting may have acted as a natural mechanism for extreme carbon sequestration.