Unstoppable

Riddle: I can kill people, but without me there would be no people. I was born long ago and will someday die. I can cause fire and am a magician with water. I have more brothers than any person. There is very little that can stop me. What am I?

Answer: A celestial body.

Source: https://www.riddles.com/960

I can kill people, but without me there would be no people. I was born long ago and will someday die. I can cause fire and am a magician with water. I have more brothers than any person. There is very little that can stop me.
What am I? — Unstoppable by Anonymous v1.

Riddle: I can kill people, but without me there would be no people. I was born long ago and will someday die. I can cause fire and am a magician with water. I have more brothers than any person. There is very little that can stop me.
What am I? Answer: A celestial body. — by Anonymous v2.