From space, says Jim Lovell, commander of the star-crossed Apollo 13 mission, you could block out the cloud-swirled sphere of Earth just by holding up your thumb. Gone, presto, into the void.
Mike Collins, the astronaut who remained in the command module while Neil Armstrong and Buzz Aldrin took those small steps for mankind back in 1969, talks about how fragile Earth looked from afar: a tiny gem glinting in endless black.
In the Shadow of the Moon is, quite simply, a revelation. With no portentous celebrity narration - just the talking heads of Lovell, Collins and eight of their Apollo brethren - this fascinating documentary recalls the bold mandate set forth by President John F. Kennedy to put a man on the lunar surface by the end of the 1960s. Amazingly, despite lethal failures, technology that now looks laughingly primitive, and a world quaking with catastrophe, the job was done.