Record-breaking total of 15,000+ citizen science observations from the SETI Institute & Unistellar Network — up substantially from ~10,000 in 2024. Observers are already tracking fading 3I/ATLAS, new ...

California Academy of Sciences researchers and collaborators described 72 new-to-science species in 2025, including a bird, fish, plants, sea slugs, and insects found across six continents, from ocean ...

Earth’s oceans reached their highest heat levels on record in 2025, absorbing vast amounts of excess energy from the atmosphere. This steady buildup has accelerated since the 1990s and is now driving ...

New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown.

Several annual international climate reports released Tuesday indicate that relentless human-caused warming continued in 2025, especially in the oceans and at the poles. For the third year in a row, ...

WASHINGTON — Earth's average temperature last year hovered among one of the three hottest on record, while the past three years indicate that warming could be speeding up, international climate ...

A 14-foot car-sized asteroid, 2025 GL, will safely pass Earth on April 3, 2026, at 2.33 million miles away. NASA tracks its ...