The number of known moons in our Solar System has been rising for centuries, but astronomers say it has probably peaked – for ...

Following is a transcript of the video. Narrator: In 2017, NASA's Cassini probe sent us our closest view of Saturn as it dove into the planet's stormy atmosphere. And the results were stunning.

A Saturn V rocket launches from Pad 39A on the ... ahead of the Demo-2 mission to the International Space Station in May 2020. NASA As for LC-39B, it has been outfitted for multiple vehicles ...