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 ...

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 ...

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 ...

On a late night in the Philippines, zoologist Terry Gosliner slipped into the waters of a sandy harbor, on the hunt for photos of octopus and other marine creatures. But as he swept his flashlight ...

ISRO's ISSAR 2025 report reveals rising satellite collision risks as crowded Earth orbit sees record launches, close approach ...

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, ...