That’s one giant blooper for the Daily News.

Describing the moon shot that started 50 years ago, the Daily Snooze Tuesday tweeted: “Four Days later, John Glenn would step onto the only other planet we’ve ever walked on uttering the famous, ‘one small step for a man, one giant step for mankind.’ ”

“It was an unfortunate mistake that was quickly caught and repaired,” said Daily News Editor-in-Chief Robert York.