NASA reveals the astronaut who required 1st medical evacuation from the International Space Station

It wasn't an emergency, but the issue required "immediate attention."

Black holes! Supernovas! Merging galaxies! Oh my! Largest radio survey of the cosmos ever reveals 13.7 million powerful cosmic objects and events

"We can study a diverse population of supermassive black holes and their radio jets at different stages of their evolution."

Astronomers capture first images of aurora on Uranus using powerful telescope

How Einstein revolutionized the meaning of "where" and "when"

Even space and time are relative in Einstein's universe. That means our old notions of "where" and "when" no longer apply on cosmic scales.

Where to Catch The Full Blood Moon and Total Lunar Eclipse this March 2026 

Learn more about the total lunar eclipse and full blood moon on March 3, 2026.

Watch NASA roll Artemis 2 moon rocket off launch pad on Feb. 25 to deal with glitch

The four-mile trek will begin at about 9 a.m. ET on Wednesday (Feb. 25), if all goes to plan.

NASA space telescope gets 1st clear X-ray image of sun-like star blowing a bubble

The observations offer a rare glimpse into our solar system's early history.

Catch Jupiter glowing under the waxing moon on Feb. 26

A waxing gibbous moon and brilliant Jupiter will pair up after sunset on Feb. 26.