UNAWE Space Scoop - When Exactly Do We Celebrate Planet Birthdays?

https://spacescoop.org/en/scoops/2317/when-exactly-do-we-celebrate-planet-birthdays/ Just how young can a proto-planetary disk be and be forming planets? Proto-planetary discs only exist for a few million years, which means that all planet formation in the system must take place within this, uh, narrow time frame.    But until now, astronomers have not been able to pinpoint how fast planets form in these discs. After years of study and observation of proto-planetary discs, astronomers found these discs have even deeper mysterious layers of structure within them.    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].