The Astronomical Particle Colliders That Put Our Own to Shame
When the Large Hadron Collider (LHC) began operations, a small but noisy group of people tried to stop it out of fear. Their reasoning: The energies produced as protons slammed into each other at close to the speed of light would be sufficiently high to create miniature black holes or other exotic, destructive things. The fruits of human curiosity would be the literal end of the world.
Those fears were unwarranted for a simple reason: Earth is bombarded by much higher-energy particles all the time, and we haven’t been eaten by a planet-munching black hole yet. In fact, the universe has many naturally-occurring particle accelerators that are far more powerful than the LHC, exceeding even anything we could build in the foreseeable future. Anything exotic we can create in our labs, the cosmos has beaten us to it.