[Q&A+] Boots on Mars When? What's on The Dark Side? Why Colonize the Moon? | Q&A 374

What is a realistic date for humans to land on Mars? What really hides on the dark side of the Moon? Is Moon a better place for a colony than Mars? And in Q&A+, do Dyson spheres or swarms make any sense? Watch the video here (with no ads) or on YouTube: https://www.youtube.com/watch?v=qIH9t8kurIk