Rogue Gas Giant, Fish In Space, Detecting Primordial Black Holes | Q&A 212

What effect would a rogue gas giant have if it flew through the Solar System? Can fish survive in microgravity and go to space? Do hypervelocity stars leave a wake we could detect? How much do we actually know about Proxima Centauri? All this and more in the week's Q&A!

Watch the video here (with no ads) or on YouTube: https://youtu.be/gLGx7l_Q4yk

And here's a link to the original, unedited livestream: https://youtube.com/live/hG-chU1EnLM?feature=share

Rogue Gas Giant, Fish In Space, Detecting Primordial Black Holes | Q&A 212 (Vimeo)