It could be something even cooler.
Gravity makes the Earth round.
Meet the moon with 11 mile high cliff
And it could help prove the existence of Planet Nine.
It could be the largest moon we've ever seen
Countdown: 45 years left until 'First Contact'
From the Popular Science archives.
Shower your friends with meteor facts.
But the cold would kill you before the smell did.
Don't you want to meet them?
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
Scientists are hot on the trail of our solar system's 9th planet
The ocean-filled moon might hold the life we've long searched for in space. And scientists have one shot to reach it.
Short answer: It depends who you ask
So. Many. Things.
Even though I helped demote it
Witness history in the making
Scientists catch a Neptune-style orbiter by its very long tail
And he thinks the upcoming flyby will prove it
This year's missions to the outer solar system are set to shake up the planetary family tree
A good week for space photography
The Triton Hopper can propel itself a half-mile into the air
Even in space, bureaucracy exists.
It's surprisingly lacking in heavy elements