Solar System
Astronomy Cast 321: Solar Flares
Sometimes the Sun is quiet, and other times the Sun gets downright unruly. During the peak of its 11-year cycle,…
Fly Across Mercury with MESSENGER!
Take a ride on the Mercury express and see what MESSENGER sees in these two new videos! Each made from…
Do You Need Some Space?
Of course you do! (Who doesn't?) And so here's a wonderful tour of our Solar System to provide you with…
Here’s the Latest Kepler Orrery Video: the Orbits of the Planets Go ‘Round and ‘Round
If you've ever wanted to know what 3,538 exoplanets look like spinning around their stars, here you go! This is…
What is the Milky Way?
When you look up at the night sky, assuming conditions are just right, you might just catch a glimpse of…
The Eerie Music of Interstellar Space
While it's true that there's no air to carry sound in space, starship explosions would be strangely silent and no…
Watch the Sun Split Apart
Here's your amazing oh-my-gosh-space-is-so-cool video of the day -- a "canyon of fire" forming on the Sun after the liftoff…
Titan’s North Pole is Loaded With Lakes
A combination of exceptionally clear weather, the steady approach of northern summer, and a poleward orbital path has given Cassini…
A Volcanic View of Mercury
Here on Earth we're used to seeing volcanoes as towering mountains with steam-belching peaks or enormous fissures oozing lava. But…
An Unexpected Ending for Deep Impact
After almost 9 years in space that included an unprecedented July 4th impact and subsequent flyby of a comet, an…