[Q&A+] How Bad Is Crashing Rockets in the Ocean, Really?

BONUS QUESTION STARTS AT 16:01 Watch the video here (with no ads) or on YouTube: https://youtu.be/xxUV3w5rrfE Should we just wait and let Alpha Centauri get closer? Which will happen first, antimatter propulsion or fusion power? What are the consequences of crashing rockets into the ocean? And in Q&A+, can we detect magnetic fields of planets being torn by black holes? 00:00 Intro 00:26 [@geohondo] Are there consequences for crashing a rocket in the ocean? 05:24 [@GadZookz] Do we have to wait 5000 years to send humans to Alpha Centauri when it will be a lot closer? 11:21 [@fermis1proponant] Anti matter power first or Fusion? 16:01 [@brendafrye8048] When a planet is gobbled up by a black hole would the planetary magnetic field be measurable as it is destroyed? 19:16 SpaceX coverage