CAPE CANAVERAL, Fla. — NASA’s Orion capsule reached the moon Monday, whipping around the far side and buzzing the lunar surface on its way to a record-breaking orbit with test dummies sitting in for astronauts.

It’s the first time a capsule has visited the moon since NASA’s Apollo program 50 years ago and represents a huge milestone in the $4.1 billion test flight that began last Wednesday.

The close approach of 81 miles occurred as the crew capsule and its three wired-up dummies were on the far side of the moon. Because of a half-hour communication blackout, flight controllers in Houston did not know if the critical engine firing went well until the capsule emerged from behind the moon, 232,000 miles from Earth.