Travelers in the Night Eps. 41 & 42 - Navigating The Night Sky & Astronauts Reveal Sobering Data on Asteroid Impacts

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: - To the human eye the night sky is a source of mystery and wonder. Our ancestors knew it well.  There is a connection to the cosmos that is hard to describe which you will achieve by knowing the names of some of the bright stars. - On Earth Day  Astronauts Dr. Ed Lu, Tom Jones, and Bill Anders announced that between 2000 and 2013, the Nuclear Test Ban Treaty Organization Network detected 26 explosions on Earth ranging in energy from 1-600 kilotons of TNT. None of them were caused by nuclear explosions, but rather by asteroid impacts.   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://astrogear.spreadshirt.com/ 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 Astrosphere New Media. http://www.astrosphere.org/ Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].