Bart alters the school weather balloon and reveals the alteration after the balloon is launched- and Principal Skinner is NOT happy about what it looks like. Skinner is so upset, in fact, that he makes Bart help him with his daily astronomy check- which starts at 4.30am! Bart is mad at himself for altering the balloon... until he makes a discovery- a comet. However Bart finds his fate tied to the "Bart Simpson Comet"- said comet is going to collide with Springfield, destroying Springfield and its inhabitants. A rocket is launched at the comet to destroy it but the rocket soars too high. All it destroys is the bridge that's the only way out of town! Will a miracle beat the comet to Springfield? Written by
Did You Know?
Principal Skinner tells Bart that he missed the chance to name a discovery after himself once, but that he got back at Principal Kohoutek. This may be in reference to an actual comet discovered by a Czech astronomer named Kohoutek in 1973. It is known officially as Comet Kohoutek. See more
When Professor Fink is about to show what the town needs to do to stop the comet from hitting Springfield, we see two people behind the display table. They disappear in the next shots. See more
I make it a point never to turn my head unless I expect to see something, Bart.