As a sea level adapted human, I am more fearful about the radiation levels on top of high altitude mountains, mile high modern cities and inside jet aircraft than from nuclear reactors and bombs, as that is where I get the most radiation exposures in the modern world.

We are in the process of finding out what filling the sky with hundreds of thousands of satellites does to all life on Earth.

Flying in a modern jet airplane doses the human with levels of radiation comparable to those found in nuclear disaster zones.

The astronomical community need to start acknowledging jet aircraft contrails to be the problem that they really are!

If you have traveled on a jet airplane, then you have had a high powered radiation exposure that you have no genetic adaptation to.

The Boeing 737 Max has become a classic example of the failure of deregulation.

Go up in a big airplane. Go high enough, and you will see the radiation rainbow interference ring around the shadow of the airplane on the clouds below.