Why is the sky blue? We get an answer from a science writer for NASA's Space Place. And what are Saturn's rings? Carolyn Porco of the Cassini Imaging Team explains.
Nov 2023
What are planets made of?
We spend a lot of time on top of our planet, but we don’t spend much time inside it. So it makes sense you might wonder what our planet is made of, deep deep down. Is it more rocks? Is it lava? Is it a gooey caramel center? And what about the other planets, like Mars and Jupiter? ... Show More
6m 7s
Feb 2024
Why does the moon change colors?
Have you ever noticed that the moon looks different at different times of the month? Not just the shape, whether it’s full and round or a tiny sliver – but the color also looks different sometimes. Maybe it’s dark orange, or silvery white, or even a bluish tinge. We asked astrono ... Show More
3m 9s
Nov 2023
How many planets are in space?
When you look up at the night sky, what do you see? A few stars, or a satellite, maybe even one of the seven other planets in our solar system? But how many planets are there in all of outer space? We asked astronomer Mark Popinchalk to help us find the answer!
Got a question t ... Show More
4m 52s
Sep 2019
Skylab: NASA’s Best-Kept Secret| Apollo’s Leftovers | S20-E1
<p>Fifty years ago, America’s space program achieved its greatest triumph, when Apollo Eleven put the first men on the moon.</p><p>The Apollo program was a remarkable success story. But as NASA was sending men to the moon, they were engaged in another, less celebrated project — o ... Show More
39m 2s