Extrasolar planets form along misaligned orbits.
Could the frigid waters of Jupiter's moon Europa host alien life?
If recent research is correct, the blackness between stars harbors more excitement than you could possibly comprehend.
A Moment of Science looks at the many different moons in our solar system.
So, if the planet doesn't orbit a sun, can it still be called a planet?
Why are the planets where they are instead of somewhere else?
Nowadays everybody knows there are nine planets in our solar system, but that information was hard won.
A Moment of Science gives a Science Hero Award to Galileo!
Learn how Ole Roemer learned that light does take time to travel.
Yes, it's true, Earth has "love handles!" Learn more about Earth's bulge...