Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here on the International Space Station I get a great view of Earth.

Far beyond the eight familiar planets in our solar system, countless bizarre and extreme worlds await discovery — and some have already been found. Thanks to rapidly advancing telescope ...

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.

Through observations, either with space telescopes or with ground-based equipment, we can find out how planets in our solar system and beyond are structured, what materials they are made of, whether ...

If you’re in the path of totality on April 8, you’ll see planets. In fact, every planet—and every moon—in the solar system will be ... Beginner’s Guide To Our Local Star, in an email.

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

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

Computer simulations suggest that there is an undiscovered Earth-like planet lurking in ... new TNOs could revolutionize our theories about how the solar system formed,” said Lykawka.

Some are in tightly bunched orbits, much closer together than the planets in our solar system. Some are Jupiter- or Neptune-size worlds that race on insanely hot orbits close to their suns.

Because they're surrounded by foul-smelling gases that are incompatible with the human sense of smell, living on the surface ...