Space

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.

Where will scientists find water in the solar system next?

Scientists saw signs of water vapor, but where it's coming from is still unclear.

Absolute monsters.

Engineers are squeezing more power out of the hardware to keep the mission going.

Look closely at the Martian desert.

It's not as far-fetched as it sounds.

A reminder that getting to the moon is still really, really hard.

Ispace will livestream its attempt to touch down.

Perhaps not all booms are bad.

Despite the blowup, the first flight marks a milestone achievement for commercial spaceflight.

The powerful rocket – which is also the world's biggest — is finally set to launch today.

As two galaxies combine, they spur a frenzy of star formation.