Manage episode 286449191 series 2560695
Just how were the Trojan asteroids in orbit with Jupiter discovered? And how were they named? We take a look back at these objects as we get closer to the launch of the Lucy spacecraft. Plus, a cluster of galaxies, a meteoroid explosion at Jupiter, seafloor microbes, wildfires, and an interview with Fraser Cain, publisher of Universe Today and co-host of Astronomy Cast.