Space

Could a giant space explosion be used as an extraterrestrial flare gun?

Extraterrestrial weather.

This cosmic object is feeding.

What lies in this moon's deep ocean?

And it's not in a galaxy far, far away — it's right here.

Say hello to your solar system neighbors.

Four newly discovered worlds are unlike anything in our solar system.

A new mosaic image of Mars shows Earth's closest neighbor as much more than a rusty sphere.

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.

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?