Gas might keep the dwarf planet's subsurface ocean from freezing.
Meet the moon with 11 mile high cliff
From the Popular Science archives.
The survey also confirmed the existence of two other moons, whose discovery was announced last year
Should we go? Can we afford to go? All this, and more.
Heat and drills will help us probe for alien microbes
Scientists aren't just jerking you around—this is about something more than your childhood nostalgia
The heavy heart may have tipped the world over
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
The Triton Hopper can propel itself a half-mile into the air
Our solar system is pretty familiar by now, but even the Moon was shrouded in mystery just 50 years ago
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
The latest and greatest images from the New Horizons mission
So. Many. Things.
New Horizons spacecraft reveals the dwarf planet is slightly larger, has polar ice cap, and more
Even though I helped demote it
Witness history in the making
It's been 50 years since we got the first images of Mars. Now we're about to get the first images of Pluto.
And he thinks the upcoming flyby will prove it
Who knows what might be lurking on this weird, tiny space rock
This year's missions to the outer solar system are set to shake up the planetary family tree