Scientists may have just uncovered 10,000 more possible planets lurking beyond our solar system. A new study published by ...

Using a new technique that partly relies on artificial intelligence, researchers spotted potentially more than 10,000 new ...

A rare comet from another star system is revealing just how different alien solar systems may be from our own.

There's an iconic scene in the original Star Wars where Mark Hamill's Luke Skywalker watches a double sunset above Tatooine, ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with ...

A rare observation opportunity revealed the presence of a thin atmosphere around a small object beyond Pluto.

When you think of outer space, you're likely picturing stars, planets and moons. But much of space is filled with clouds of gas, plasma and stardust—known as interstellar clouds.