Without a separate vote or even a debate, House Majority Leader Tom DeLay (R-Tex.) has managed to deliver to a delighted NASA enough money to forge ahead on a plan that would reshape U.S. space policy for decades to come. President Bush’s “Vision for Space Exploration,” which would send humans to the moon and eventually to Mars, got a skeptical reception in January and was left for dead in midsummer, but it made a stunning last-minute comeback when DeLay delivered NASA’s full $16.2 billion budget request as part of the omnibus $388 billion spending bill passed Nov. 20, 2004