NASA's Moon-Orbiting Robot Crashes Into The Dark Side Of Moon

NASA's robotic moon explorer, LADEE, has crashed into the back side of the moon Friday as planned, avoiding the precious historic artifacts left behind by moonwalkers.

Flight controllers confirmed that the orbiting spacecraft crashed.

LADEE's annihilation occurred just three days after it survived a full lunar eclipse, something it was never designed to do.

Researchers believe LADEE likely vaporized when it hit because of its extreme orbiting speed of 3,600 mph, possibly smacking into a mountain or side of a crater. No debris would have been left behind.

"It's bound to make a dent," project scientist Rick Elphic predicted Thursday.

By Thursday evening, the spacecraft had been skimming the lunar surface at an incredibly low altitude of 300 feet. Its orbit had been lowered on purpose last week to ensure a crash by Monday following an extraordinarily successful science mission.

LADEE — short for Lunar Atmosphere and Dust Environment Explorer — was launched in September from Virginia. From the outset, NASA planned to crash the spacecraft into the back side of the moon, far from the Apollo artifacts from the moonwalking days of 1969 to 1972.

Scattered over the near side of the moon: the landing portions of six lunar modules, flags, plaques, rovers and more, not to mention those memorable first footprints by Neil Armstrong and Buzz Aldrin. Apollo 12 had been projected to be closest — by several hundred miles.

The last thing the LADEE team wanted was "to plow into any of the historic sites," said project manager Butler Hine.