I thought the movie was Mission to Mars, but just watched it & there's no such scene. It's really annoying me! I think it was at the end of the movie where the astronauts are left floating away from each other in space, I think one of them even had his head explode or something, it was pretty gory & creepy
closed as off-topic by Walt, Chanandler Bong, Catija, Panther, Napoleon Wilson♦ May 21 at 12:15
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It is Mission To Mars, perhaps you've seen an edit where the specified scene is removed (particularly if it was shown on TV, it's quite grisly) and that is where the confusion originates from.
In a scene that Gravity seemingly borrowed from, Commander Woody Blake purposefully sacrifices himself so the rest of the crew don't expend valuable resources attempting to rescue him. He does this by removing his helmet, and we watch as his head rapidly freezes...
The remaining crew are left using their EVA packs to navigate to the orbital...
The rest of the Astronauts survive however which is the only discrepancy...