The Lunar Atmosphere and Dust Environment Explorer or LADEE, pronounced “LA’-dee,” is taking a roundabout path to the moon, making three huge laps around Earth before getting close enough to pop into lunar orbit.
Unlike the quick three-day Apollo flights to the moon, LADEE will need a full month to reach Earth’s closest neighbor. An Air Force Minotaur V rocket, built by Orbital Sciences Corp., provided the ride from NASA’s Wallops Flight Facility.
LADEE, which is the size of a small car, is expected to reach the moon on Oct. 6.
Scientists want to learn the composition of the moon’s ever-so-delicate atmosphere and how it might change over time. Another puzzle, dating back decades, is whether dust actually levitates from the lunar surface.
The $280 million moon-orbiting mission will last six months and end with a suicide plunge into the moon for LADEE.
The 844-pound (380-kilogram) spacecraft has three science instruments as well as laser communication test equipment that could revolutionize data relay. NASA hopes to eventually replace its traditional radio systems with laser communications, which would mean faster bandwidth using significantly less power and smaller devices.
“There’s no question that as we send humans farther out into the solar system, certainly to Mars,” that laser communications will be needed to send high-definition and 3-D video, said NASA’s science mission chief, John Grunsfeld, a former astronaut who worked on the Hubble Space Telescope.
It was a momentous night for Wallops, which was making its first deep-space liftoff. All of its previous launches were confined to Earth orbit.
“It was just a beautiful evening,” Grunsfeld said.
NASA chose Wallops for LADEE because of the Minotaur V rocket, comprised of converted intercontinental ballistic missile motors belonging to the Air Force. A U.S.-Russian treaty limits the number of launch sites because of the missile parts.<< previous 1 2
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