R&D for space programs means FUNDING. FUNDING is what has been lopped every damn year in NASA..
Damn straight we should restart X33 and similar projects.. damn straight the Shuttles should be retired or turned over to the Military when newer more efficient platforms are brought on line.
Deal is, thanks to buget cuts we ain't got a fall back vehicle yet. So we need to keep what we have flying. Hopefully, this gawdamned disaster will get that funding pipe opened back up.
The nay sayers bark "unmanned space exploration... thats the ticket!!!" Horseshit. Unmanned vehicles are a nice complement for manned missions, but no way in hell are they even remotely capable of returning to us the info needed to expand humankind into a permananet or semi-permananet space habitat.
Man needs to go.. see.. touch.. feel.. exist in and become competent in space. That can't happen with robots and cameras exclusively.
"Too dangerous"? Kewl.. give up your car, never leave your house, step into a bathtub or get off your couch again.. because living life is dangerous. Never mind exploring.. which by it's very nature is exceedingly dangerous.
If the REAL issue is safety.. ask the astronauts. It'sTHEIR lives at risk.. so go ahead.. ask 'em! "There's a 2% chance, based on the actual historic numbers that your mission will end up with you toasted like a cheesepuff. You still wanna ride on that 'deathtrap?" You can bet not one will back out of his/her mission slot.
If the REAL issue is your perception of YOUR safety.. "hey, I don't want one of them things landing in MY backyard in a ball of fire".. Well, boyo, you got a much better chance of winning the lottery in all 50 states simultaneously without buying a ticket in one of 'em than you got of having a space shuttle land on your head.
Whats this all really boil down to?? It's a bunch of pissy panzie bellybutton pinheads gleefully finding fault with something they can't even grasp the magnitude of.. a Space Shuttle.. 5 million tons of technology hurled into the sky by Mans VIGOR and SKILL and DARING.. and they just can't come to grips with something they cannot fathom... they'd rather grovel in the dirt, grasping at straws instead of stand up and forging ahead thru adversity towards something BETTER.
Keep 'em flying.. fly the damn things till there's something better to hurl out there.. as long as men and women want to go, lets make it possible for them TO GO!
ONWARD! UPWARD! Go, BABY; GO, GO GO!!