AmericanMustache

I've heard that astronauts see flashes of light behind closed eyelids due to cosmic radiation. Have you experienced this?

"Never Surrender!"

and of course Galaxy Quest.

This is the correct answer.

Could you go into more detail about this please? I find this very interesting. I can't imagine being strong enough to deal with news like this.

Hi everyone!

I've always been interested in the potential impact that climate change would have on the great ocean conveyor, but I don't hear much about it. Is this something we need to be more concerned about? Is so, why?

Thanks!