Episode 797: Fusion Rockets, Ditching Heat Shields, Looking Beyond the Edge of the Universe | Q&A 176

Universe Today Podcast · Mar 27, 2022 · 41m

In this week's live Questions and Answers show, I explain how a more powerful rocket could reduce the need of a heat shield, if we could detect objects beyond the edge of the observable Universe through their gravity, and what are the largest objects (or spacecraft) that could hang out at a Lagrange Point?00:00 Start00:13 Why do we even need heat shields?03:12 Could we detect objects beyond the observable Universe through their gravity?05:42 Can massive objects last at Lagrange Points?08:03 Will fusion drives enable interstellar travel?11:35 Why does gas need to be cold to form stars?13:11…