Latest news and analysis in science.
Using 12.6 years of data, IceCube set the tightest limit yet on neutrinos above 10 PeV and used it to constrain the proton fraction in ultra-high-energy cosmic rays for the first time.
A new catalyst turns ethanol into hydrogen and acetic acid at 270°C with no direct CO2 release. The process can meet U.S. green hydrogen rules and has been run 100+ hours continuously.
Scientists have found obelisks—viroid-like RNA elements—in bacteria across seven continents. They appear in half of oral samples and force a rethink of what counts as alive.
Aurora activity peaks in 2026. Best months are December–February; best hours 10 p.m.–4 a.m. Here are the top locations in North America and Europe.
Solar and wind generated more electricity than coal for the first time in 2025. Global renewable capacity additions reached 793 GW amid record solar deployment in China, India, and the EU.
Artemis II wet dress rehearsal revealed fueling and valve issues; first crewed lunar flyby is now no earlier than March 2026. Artemis III, the first crewed Moon landing since Apollo, slips to 2028.
A total solar eclipse crosses Europe and the Arctic on August 12, 2026—the first totality over mainland Europe since 1999. Path and viewing guide.
A rare polar vortex split is forecast for mid-February 2025. Sudden stratospheric warming could send Arctic air into North America.