While many of the men would like to see a return to the moon for further exploration and a jumping off point for Mars, there is at least one prominent dissenter.

Buzz Aldrin, who set foot on the moon along with Neil Armstrong for the first time July 20, 1969, said he believes it is a waste of resources to return to the moon.

He stressed that NASA would be better served by focussing only on Mars rather than spending billions of dollars on the moon, where conditions are different and may not even prepare astronauts for the Red Planet.

'To me exploration is going someplace you haven't been before,' Aldrin said.