Here's a collection of the best stories from out of this world, like why NASA leaves space junk on Mars and sends nudes to aliens. And Former NASA Astronaut Mike Massimino shares his challenging journey to becoming a NASA astronaut and the lessons that led to his book “Moonshot: A NASA Astronaut’s Guide to Achieving the Impossible” and his thoughts on the existence of intelligent life in the galaxy.See omnystudio.com/listener for privacy information.