Asteroids

2 articles

A massive asteroid passes by Earth, highlighting the ongoing challenge of detecting all potential cosmic threats.

Giant asteroid passes safely; undetected threats remain

A giant asteroid, 1997 NC1, will pass safely within seven lunar distances of Earth on June 27. This event, while benign, highlights that our ability to detect all potential threats before they pass remains imperfect.

Dr. Evelyn Reed·June 27, 2026

A vibrant, artist's impression of early Earth receiving water from asteroid impacts, set against a backdrop of cosmic dust and nebulae.

Cosmos & Physics

Origin of Earth's Oceans: Asteroids and Internal Sources

Many carbonaceous chondrite meteorites, the very building blocks of planets, contain between several percent and up to 15% water by mass, locked within their clay minerals, according to Water Reservoi

Dr. Evelyn Reed·June 13, 2026