What could it be? What is the reason for GREEN SLIME!?

Scientists, go figure. They try new things and sometimes it kills us. Like those underground explosions and those anti-matter black hole machines they've been experimenting on. All they create is death, destruction, and monsters. What does this have to do with The Green Slime, you may ask? The answer is everything. You see, I'm not a scientist, but I've played one at home with my Skill craft Chemistry set. In the film, The Green Slime you will see the same mistakes scientists make and it's all in outer space.
First there's this asteroid headed straight for Earth and the next thing you know we've got The Green Slime.