Staring at the sun—a close (but safe) look at our home star Staring at the sun ... Free learning activities and videos about the solar system Free learning activities and videos about the ...

Now, over 45 years later, these incredible probes are detecting something mysterious beyond the edge of our solar system. In this video, we explore the groundbreaking discoveries made by ...

There's something big missing from our solar system ... for a super-Earth just beyond Mars. "The configuration that we end up with within the solar system is definitely not something that ...

a protective bubble created by the Sun that extends beyond the orbit of Pluto The Voyager 2 probe, which left Earth in 1977, has become the second human-made object to leave our Solar System.

A new study suggests that the planet’s icy interior and liquid ocean could be insulated with a three-to-six-mile-thick layer of methane clathrate, which is solid water ice with methane gas trapped in ...