Subject: Re: Richard Feynman explains why Mars a one way trip
We can't shield against cosmic rays with any currently-existing technology, nor are there any real prospects for developing a material that can do so over the next few decades.


And there it is. “We can’t”.

You want to know the difference between those who want to see us head out to the stars and those who want to stay put?

Those 2 words. Says it all.