Watched Deep Impact. It's different what you'd think from the title.
It came out in 1998, the same year as Armageddon, and it's literally the same topic: a giant meteor speeding towards Earth and a group of astronauts goes up there to drill holes and nuke it, but have to make a sacrifice.
Armageddon takes a more... "Amerrrikaaa Fuck Yeah!" stance, while Deep Impact is more sombre, and I read it's more scientifically sound (as much as these things can be). Deep Impact also follows a journalist chiefly, while Armageddon concentrates wholly on the crew of the spaceship.
I have never seen this before, and it was okay.