Does Vera Rubin leave any chance for aliens to still sneak upon us? Can something like space whales actually exist? 🦄 Support us on Patreon:https://patreon.com/universetoday00:00 Start00:31 [Kasie Ream] Which is the bigger showstopper for Mars: food or radiation? 02:29 [Richard Vanasse] Does Vera Rubin make it impossible for an alien fleet to sneak up on Earth? 08:14 [Michael D] How do I feel about the possibility of "space whales" type aliens?