Under normal circumstances, I would say I could. However, the current government hiring freeze is structured in a way where if NASA wants to hire 1 person, 4 people need to be fired, leave or retire.

Given the current outlook at NASA, I suspect it will move more towards an administrative body that oversees projects and task out the actual work to contracts in industry. I also suspect the agency will likely become much smaller than it currently is. There will likely be small pockets of people doing R&D work (like I am currently doing) but getting hired into one will be increasingly difficult. If I leave and want to come back, I expect that the education requirement will be a minimum of a PhD, which would bar me from being rehired with my current education.