a10t2
a10t2 t1_j6jvqt1 wrote
Reply to comment by curiousauruses in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
The "blue glow" type of propulsion is probably an ion engine, which is essentially just propellant + electricity. From a sci-fi perspective you'd want to generate that electricity with a fusion reactor.
a10t2 t1_j6jv6aw wrote
Reply to comment by newtoallofthis2 in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
No, Orion is a nuclear pulse drive, not a nuclear thermal rocket. Bombs vs. a reactor.
NTRs have not only been designed, but actually built and tested for full-duration firing.
a10t2 t1_j5wfte2 wrote
Reply to comment by quetric in Why do sample return missions such as OSIRIS-REx use their own reentry vehicles instead of just going to the space station for pickup and return with ISS equipment? by PromptCritical725
Bear in mind though that any sample return would be coming in on a hyperbolic trajectory. Given the time scales involved the ∆v required to intercept the ISS would be negligible when compared to that needed to rendezvous.
a10t2 t1_j5h3pe6 wrote
Reply to comment by RunLoud6534 in Not much but finally moved the the countryside and actually have a nights sky. by ProfessorEsoteric
You don’t necessarily have to choose. I’m <1 km from the local grocery store and have statistically some of the darkest skies on earth.
a10t2 t1_j6jw269 wrote
Reply to comment by Dragongeek in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
I haven't seen numbers anywhere near that. For a hydrolox RDRE they're hoping to hit maybe 550 s.