The astronauts have supposedly been training together for 2 years yet it seems they don't know each other at all.Terrible acting.
Really annoying baseless cliché running throughout the first two episodes (after which I gave up watching the show): American hero commander and two bad astronauts from Russia and China that constantly gang up on her.
Unrealistic lack of professionalism from astronauts that would definitely be top professionals if they've made selection for the first manned mission to Mars.
Loose story line. Why the hell would ground control tell the commander her husband has had a stroke and is intensive care just hours before launch from the lunar base, which will require maximum mental and physical focus?
Ground control are annoyingly panicky.
Not great.