[zerr]

Isn't NASA quite well funded already? Sky is the limit (or not..) of course, but I'd rather prefer a donation to those with immediate needs.

[rootbear]

NASA contractor here. Our funding has been slowly declining in recent years, with some years better than others. It's currently about 20 billion USD, or about 0.5% of the US budget. We are not what I would call "quite well funded", but we manage. A project I support, WFIRST, is currently over budget (as most space telescopes have been) and is constantly under threat of being cancelled. The recent shutdown cost the Government far more that what is needed to finish WFIRST.

Details of the NASA budget can be found at the inevitable Wikipedia page:

https://en.wikipedia.org/wiki/Budget_of_NASA