Former Nasa astronauts who went to the Moon have told the BBC of their dismay at President Barack Obama's decision to push back further Moon missions.
Jim Lovell, commander of the ill-fated Apollo 13 mission, said Mr Obama's decision would have "catastrophic consequences" for US space exploration.
The last man on the Moon, Eugene Cernan, said it was "disappointing".
Last month Mr Obama cancelled Nasa's Constellation Moon landings programme, approved by ex-President George W Bush.
Nasa still aims to send astronauts back to the Moon, but it is likely to take decades and some believe that it will never happen again.
In light of the current big political issue, one that Obama has been pushing since the start of his presidency, the opening line of Gil Scott-Heron's 1970 poem has in it the ring of the prophetic:
A rat done bit my sister Nell.
(with Whitey on the moon)
Her face and arms began to swell.
(and Whitey's on the moon)
I can't pay no doctor bill.
(but Whitey's on the moon)
Ten years from now I'll be payin' still.
(while Whitey's on the moon)