I'll support ending the space program if people can admit the following things weren't worth the investment:
A water filtration system providing safe, affordable drinking water throughout the world is the result of work done by Marshall Space Flight Center engineers who are creating the Regenerative Environmental Control and Life Support System, a complex system of devices intended to sustain the astronauts living on the International Space Station. The devices, available through Water Security Corporation Inc., of Sparks, Nevada, make use of the available resources by turning wastewater from respiration, sweat, and urine into drinkable water.
A Mars Exploration Rover prototype robot and an autonomous stair-climbing robot created at the Jet Propulsion Laboratory have been further developed into commercial tactical reconnaissance robots that are being used in Afghanistan and Iraq to help U.S. troops clear caves and bunkers, search buildings, cross live antipersonnel mine fields, and deal with the dangers posed by improvised explosive devices. Several systems have been damaged or completely destroyed in seeking out improvised explosive devices in Iraq, but have been credited with saving lives in doing so. The commercial offspring, known as the PackBot Tactical Mobile Robot, is manufactured by iRobot Inc., of Burlington, Massachusetts.
Military and civil technology, Batman!? That's right, Robin...military and civil technology.
I wonder if Americans even look to the stars anymore. Boring slouches...