Space

Even astronauts get pizza cravings.

A $5 million donation made the state-of-the-art science hub possible.

The bizarre material just got a little less mysterious.

K2-18b orbits a red-dwarf star in the constellation Leo, and it's situated in the perfect zone to have liquid surface water.

Its atmosphere is electric blue.

Imagine trying to start a car that's been sitting in a garage for decades—and the car is 13 billion miles away.

Let's try to wrap our heads around it.

It's been a great year for sky watching, and the universe had a little more in store for us before 2017 ends.

Even Carl Sagan, who created it, was turned down by NASA when he asked for one.

The cigar-shaped asteroid is 10 times longer than it is wide and was probably flung from a young stellar system, location unknown.

Woah.

FYI, this ice giant is not pronounced "your anus," but rather, "urine us" … which is hardly an improvement.

Introducing Ross 128 b.

The answer isn't so simple.

The asteroid belt tells the story of the creation of the solar system.

It's a great month for skywatching.

"We have been waiting for this day for decades."

Plasma waves, stardust showers, and Jupiter lightning would sound right at home in a haunted house.

And you know what that means: Aliens!! (Kind of.)

It took a full year’s worth of satellite data to make it.

"For me, it feels like the dawning of a next era in astrophysics."

Interplanetary fame, here you come!

Did you know the famous astronomer campaigned for marijuana legalization? Read on for more little-known tidbits about Carl Sagan.

You probably saw the headlines. Here's the inside look—and the big picture.