Travelers in the Night Eps. 223E & 224E: Fragment & Enceladus’ Ocean
The 365 Days of Astronomy - Podcast tekijän mukaan 365DaysOfAstronomy.org
Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org Today's 2 topics: - Richard Kowalski discovered 2016 dp! Millions of years ago two large asteroids collided in the asteroid belt. Pieces were sent flying in all directions. A few of them were put into orbits which rise high above and below the plane of the solar system as they continued to travel around the Sun. A fragment is discovered from a collision long ago as it comes near the Earth. Fortunately this space rock will not strike the Earth anytime soon. It will continue to orbit the Sun in the silent vacuum of space until it has a collision with another asteroid or comet in the far distant future. - Pound for pound Saturn's moon Enceladus is the brightest object in our solar system. It is so shiny that it reflects most of the sunlight that strikes it. Since Enceladus absorbs little sunlight its surface is 330 degrees below zero Fahrenheit. Below its icy exterior the story is very different. It appears that Enceladus has an ocean of liquid water. What Next? We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too! Every bit helps! Thank you! ------------------------------------ Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! http://cosmoquest.org/Donate This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just click!) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
