Question: What would happen if radiation over power the universe?

Thomas Biggans answered on 20 Jun 2016:

I’m not sure what you’re asking, are you wondering what would happen if there was alot more radiation in the universe?

The universe is full of radiation already in fact we use the background radiation of the universe to measure how big it is. We’re protected from alot of the radiation in space thanks to the Earth’s magnetic field which acts as a shield and pushes most of the radiation but not all of it away from Earth.

If there was alot more radiation then there might be a dangerous amount getting through the Earth’s magnetic field and reaching us. The other thing to consider is space travel, astronauts on the space station are exposed to more of the radiation because they are not as well protected by the shield. If there was too much radiation in space it might be too dangerous for us to travel into space anymore.