Saturn's rings are made of the remnants of former moons that were destroyed in a collision.
Our moon stabilizes Earth's axis and makes for habitable conditions; but, scientists discover, life is still possible without moonlit nights.
Pluto was demoted to dwarf planet status, but it still has moons. This new moon, called P5 for now, is the fifth moon found orbiting Pluto.
A Moment of Science looks at the many different moons in our solar system.
What makes Galileo our science hero? For one thing, he moved human knowledge forward against outstanding prejudice and even persecution. Learn more on this Moment of Science.
Ever wondered what makes up Saturn's rings? Find out on this Moment of Science.
Did you know that there was a time before fire ever existed? Learn more on this Moment of Science.