AstroTalk Episode December 17, 2020

Challenging the Drake Equation. The Geminids Meteor Shower. Planet 9 And Planet HD106906B, Is This Planet A Cousin Of Planet 9? The Chang e 5, China's Moon Rock Mission.

2:20pm - 3:16pm

Why hasn't any astronomer tried to make a new type of Drake Equation? the equation was first proposed about 60 years ago, and no revisions have been made to it. Discussing the Geminids Meteor Shower. The search for Planet 9. Astronomers have speculated that Planet 9 could have been ejected to the outer parts of our solar system. The cousin of Planet 9, planet HD106906B, could have been found in a double star system, that is 326 light-years away. The planet orbits its t2 stars once every 15,000 years. (Zooowie!) China's Chan e 5 mission has bco0mpoleted its retrieval of lunar soil and is returning to Earth. It will land somewhere in the Mongolian desert.