Could aliens visit Earth? Here are some challenges

AI-powered robots are helping researchers locate and remove waste from Europe’s seafloor, making underwater cleanup safer and more efficient.

Comet R3 PanSTARRS is closest to Earth on April 26. See a cool image from a sun-watching spacecraft, and these fantastic community photos.

Earth Oddities • Strange Weather Phenomena • Desert Ecosystems • Go back to Strange Sounds Death Valley is experiencing a rare superbloom, a spectacular desert event in which vast numbers of wildflowers suddenly bloom across the valley floor after rare rainfall. This is the best flowering desert phenomenon in the driest place in North America […]

Sun news for May 9, 2026: Returning powerhouse AR4419 peeks over the northeast horizon. AR4432 fires all 18 flares in the past day. Stay tuned!

Researchers have found that outer solar system object 2002 XV93 is a tiny world with an atmosphere. How does such a small object have an atmosphere?

Sun news for May 23, 2026: AR4436 fired an M flare from the far side! But an incoming region leads in flares. The Earth-facing disk is about to get busier.