Did we already contaminate Mars with life from Earth? When will we find the first intergalactic object? How do we know dark matter is in the center of the Milky Way? Answering all these questions and more in this Q&A show.👉 Get an extra Overtime Q&A episode:https://patreon.com/universetoday📺 VIDEO VERSIONhttps://youtu.be/SU3_svRJYUc📰 GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter🎧 PODCASTSUniverse Today: https://universetoday.fireside.fm/Astronomy Cast: http://www.astronomycast.com/📩 CONTACT FRASERfrasercain@gmail.com⚖️ LICENSECreative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast