Perseverance just landed on Mars, where it will search for signs of life. But space's cool factor doesn't begin or end there!

I’ve always loved looking up at the night sky. Even though I didn’t pursue science in college, the outer world has never stopped fascinating me, because that endless stretch above us makes everything ...

The natural world rarely behaves the way we expect. Physics bends intuition. Biology ignores neat categories. Space refuses to be reasonable. Some facts sound like they were invented for a science ...

The concept of space is so intriguing that it fascinated our ancestors, and to this day, humans have been trying to figure out the big mysteries that it possesses. Even with all the technology that we ...

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...