NASA wants to return something from Mars…almost, NASA gets a new direction, a supermoon rant, and of course listener questions!

NASA wants to return something from Mars…almost, NASA gets a new direction, a supermoon rant, and of course listener questions!
What strange creatures inhabit the so-called “particle zoo”? Why is it a zoo instead of something simpler?
All planets with liquid water please raise your hand, don’t go chasing interstellar asteroids, and of course listener questions!
A guide to the winter sky and questions about the science of sci-fi with special guest Michael Solomon.
SpaceX engines catches fire (in the wrong way), naming a frozen rock, and of course answers to your questions!
Big planet near a little star, a guide to making giant telescopes, why bother with the arts, and of course listener questions!