Status Updates From O Dilema do Astronauta

I just started listening to it, and it reminds me of Heinlein's teen series. A young 17 year old joins the space travel knowing he won't be able to see his family again. Covers theory of relativity well and in search of a warp drive to remove the time dilation issues for space travelers. 3/5/2026 @ 11:40 a.m.