Space

The blast was so bright, we can see it on Earth from 21 million light-years away.

If you gaze at this image, you gaze back into deep, deep time.

The James Webb Space Telescope is revolutionizing exoplanet hunters' understanding of alien worlds.

Astronomers find hundreds of near-Earth asteroids every year.

Countless stars.

Key takeaways from the space agency's first televised "unidentified anomalous phenomena" meeting.

These savings have us starry-eyed.

The geyser-like plumes could fill an Olympic pool in a couple of hours.

A cryptic object, cloaked in the cosmos.

Are those scattered spacecraft parts?

Scientists captured an "unprecedented" view.

It's not every day we witness a colossal star blowing up.

Sunspots the size of Earth or bigger.

Expansive Martian vista.

The spaceship will put astronauts on the moon in 2029.

It's getting closer and closer to the extreme moon.

Whenever it happens, it will be astonishing.

A new Earth-size discovery fascinates exoplanet hunters. Could it have an atmosphere?

And they won't last long, scientists say.

Scientists continue to find bizarre natural satellites around the ringed planet.

This Martian river was no joke.

How scientists make sense of a streak of light in the cosmos.

It may have once been a water world.

Look at the glorious rings.

This harsh end for a planet is what's predicted for Earth.