Complex carbon-based molecules crucial to life on Earth originated somewhere in space, but we didn't know where. Now, huge ...

Here's what would happen if Earth really had a second moon Here's what would happen ... Is there a 9th planet out there? We may soon find out. Earth is a geological oddball in our solar system. This ...

A distant interstellar cloud was found to contain an abundance of pyrene, a type of large carbon-containing molecules known ...

The human species is ever-changing and so is our view of the universe.

Earth is surrounded by a fascinating array of celestial companions: seven quasi-moons, an indeterminate number of minimoons, ...

How old is Earth? Our planet's age is known from a variety of sources, from rocks on our own planet to ones from the moon.

Scientists have not yet found direct evidence of a moon outside our solar system -- but they just found a hint of a hellish one.

Recent breakthroughs in lunar sample analysis from both the Apollo 16 mission and the far side of the moon have unveiled ...

Pluto has five moons—“fun-looking space potatoes,” Singer calls them—and its largest is a behemoth. Charon was discovered in ...

How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it ...

Over the last week, we’ve been entertained by a pre-Halloween visitor from the depths of our solar system. It’s Comet ...

Prior to the new research, scientists had traced the source of just 6 percent of the known meteorites that fell on our planet ...