Close look at our (non)friendly visitor
Alien Creeper
Alien Creepers are hyper-charged creepers from space. They generally arrive when meteorites fall from space and hit the overworld surface. They also seem to spawn randomly while mining meteorite ore making meteorite mining very dangerous be sure to have a good escape route. The explosion radius is 4-5 blocks larger than that of a normal creeper.
When you kill it, you have a chance to get a red meteor gem.