Lordy. I remember watching this when I was a kid and then I saw it on TV again a few weeks ago. There were really, really hokey special effects that I could spot when I was a child. There were weird actors. The Meteor/Deep Impact/Armageddon story line make this a depressing visitation to a time when science fiction was still looked at as Sunday pulp. Somehow with all this, this Green Slime gets on one of the Astronauts, and then grows into a bunch of what looks like kids in bad alien costumes with big red eyes. If I can remember properly, this crud was produced and filmed in Japan with American actors, and it was completed quickly to try to beat 2001 to theatres. Cripes, I can still see the poor Japanese children draped in foam rubber with tentacles a danglin, getting shot by weird white dudes. I can't really recommend this for anyone who hasn't seen it when they were a kid.