The Solar System
In the Solar System Channel, you can explore the planets and celestial objects around our own sun. Learn about topics such as Mars, Jupiter and the Moon.
Constellation Pictures
How to Find Orion's Belt in the Night Sky
Radio Telescope Image Gallery
How do I build a telescope at home?
Shooting the Stars as an Astrophotographer
The Largest Star in the Universe Is 1,700x Bigger Than Our Sun
Twinkle, Twinkle: The Ultimate Stars Quiz
White Dwarfs Can Shred Planets to Pieces
Learn More / Page 6
This doughnut-shaped ring around the sun is home to millions of comets, moons, dwarf planets and other celestial objects. What are these objects doing in the Kuiper belt?
Head's up, stargazers! Mark your calendars for the 22 must-see events this year.
News headlines talk about a rare green comet appearing in the sky. The comet itself is rare, but green comets, not so much. What makes some comets appear green?
Advertisement
February is a cold time of year, and the snow moon nickname pays homage to that. What are some other names for February's full moon and what do they mean? Plus, when can you see the snow moon?
April's pink moon isn't called pink because our beloved bright white moon suddenly takes on a rosy hue. So, why is it called the "pink moon"?
Native American tribes have called the May moon the flower moon for centuries. The name even inspired a best-selling novel and film.
The full moon in June is known as the strawberry moon. It's a sweet name, but how did the strawberry moon get its moniker, and what else is it called?
Advertisement
A lunar land rush is the most likely thing in the world (or, rather, out of it). As private companies gaze spaceward with dollar signs in their eyes, it's time to start settling some questions about space ownership, use and management.
Leash your cheetah, buckle your seatbelt and tell Usain Bolt to take a knee. We're about to power through some of the speediest stuff this universe – both in the real world and in fiction – has to offer.
A billion years ago, the moon stopped being geologically active. But that's not to say that the moon is doing nothing for Earth. Let's find out why we owe our moon some thank yous.
It's tough to wrap your mind around a time when the Earth wasn't here. So how do Earth and the rest of the planets out there get their start in the universe?
By Robert Lamb
Advertisement
We can't defy the odds of an asteroid taking a turn for Earth forever, so the world's astronomers watch the sky. What happens once they spot something?
By Robert Lamb