Ask A Spaceman!

What are some of the problems with dark matter? What about modified gravity? Are there any other solutions? I discuss these questions and more in today’s Ask a Spaceman! Please support our amazing sponsors of this episode: Visit BetterHelp to get 10% off your first month! Join Paul's Audio Book Club on Chirp. There are no commitments or subscription required. Listen along with Paul, and you can enjoy deeply discounted prices (for a limited time) on each of Paul's Book Club Selections! Just go to https://www.chirpbooks.com/spaceman and follow the club to stay in the loop for future picks and other exclusive content. Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Follow on Twitter: http://www.twitter.com/PaulMattSutter Like on Facebook: http://www.facebook.com/PaulMattSutter Watch on YouTube: http://www.youtube.com/PaulMSutter Read a book: http://www.pmsutter/book Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming t