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1 vote
0 answers
48 views

How much radiation on the surface of the moon during a Coronal Mass Ejection (CME)?

I'm writing a book set on the moon. A Coronal Mass Ejection (CME) as large as the Carrington Event hits it. Three astronauts are caught out during an EVA. They will cover their rover in regolith to ...
L.R. Lam's user avatar
3 votes
2 answers
291 views

What's the energy of all the light/electromagnetic radiation in our galaxy?

I came upon this question while watching a pop-sci video on youtube about Dark Matter and thinking about all the things that could be contributing gravitational influence to a galaxy. From relativity ...
martixy's user avatar
  • 133