https://www.youtube.com/watch?v=O6sWUSuXDB0 From  Jul 22, 2023. One of the most exciting recent discoveries in astronomy has been the existence of planets around other stars.  Called exoplanets, they vary wildly in their characteristics, appearance and behavior.   Most of the over 5000 exoplanets discovered so far are in orbit around other stars, some whiz around their home sun in a matter of only days while others have orbits that last decades or hundred of years.   But there is another interesting class of exoplanets that do not have a home sun.  These rogue worlds travel the distance between the stars, they live in the cold, dark interstellar regions of the galaxy.   Watch all episodes without ads and download on https://exoplanetradio.com Music by Geodesium: https://lochnessproductions.com   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 info@365DaysOfAstronomy.org.