Definitely not as bad as the one - and two -star reviews make it out to be.

Rating: 7/10 (19 June 2017)

The crew on the ISS examines an organism brought back from Mars. 'Crap enters life-support' and the eerie happenings occur in fast pace with little room for anything but characters acting on guts, rather than a medium-long term plan. However, most of what they do, makes sense in the moment - if they aren't quickly patching up some part of the stations machinery (If you don't do that on a vessel in the vacuum of space, you don't do anything anymore) they are awestruck watching the extremely powerful and versatile little being do its thing. A few, but not so many as to be mind-boggling, unfounded and unthinkable mistakes were made by characters - compared to others in the genre; the ratio of unthinkable mistakes in this movie pulls the average in the right direction. Also, discover them on your own - Many of the reviews here spoil several scenes, ick.
I thought this movie was way more, forgive the pun, air-tight than some of its' recent genre-siblings. The characters from Prometheus and Alien: Covenant still win the "I should have been a space trucker"-awards, while these guys, (however boring.. maybe even because they were boring) seemed more like scientists than any in my recent sci-fi memory.
Fyi: I only have sci-fi memory.