The Most Powerful Explosions in the Universe Could Sterilize an Entire Galaxy. 💥 #Shorts

Added: 2026-05-21

[00:00:00]A gamma ray burst releases more energy in seconds than the Sun will emit in its entire 10 billion year life.

[00:00:06]It is the most violent event the universe produces.

[00:00:10]A long gamma ray burst is directional.

[00:00:12]It fires a focused beam.

[00:00:14]If one within our galaxy pointed directly at Earth, we would have no warning and no defense.

[00:00:20]A burst within a few thousand light years would destroy the ozone layer across the hemisphere it struck.

[00:00:26]Mass extinction would follow as UV radiation flooded the surface.

[00:00:30]The Ordovician extinction, which killed 85% of Earth's species 450 million years ago, may have been triggered by a gamma ray burst.

[00:00:39]We may have nearly been erased before complex life truly began.

[00:00:44]There are stars in our galaxy right now that could produce a gamma ray burst.

[00:00:48]The probability of one being aimed at us is low.

[00:00:52]But low probability and zero probability are not the same thing.