NASA Moon Dust Probe Begins Lunar Science Mission

LADEE Above Lunar Sunset Artist's Concept
Artist’s concept of NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft in orbit above the moon as dust scatters light during the lunar sunset. (Image credit: NASA Ames / Dana Berry)

NASA's newest lunar probe has officially begun its mission to study the moon's tenuous atmosphere like never before, as well as track how dust moves across the lunar sky.

The Lunar Atmosphere and Dust Environment Explorer, nicknamed LADEE for short, entered its science orbit on Wednesday (Nov. 20). The spacecraft now circles the moon once every two hours in an orbit, approaching within a mere 8 miles (12 kilometers) at its closest point and soaring 37 miles (60 km) overhead at its highest point, NASA officials said in a statement. A NASA video captured the moon mission milestone as LADEE bgean its science mission.

The $280 million LADEE spacecraft launched from a Virginia spaceport Sept. 6 and is expected to spend about 100 days probing the structure and composition of the thin atmosphere of the moon.  [Photos: NASA's LADEE Moon Dust Mission in Pictures]

"A thorough understanding of the characteristics of our lunar neighbor will help researchers understand other small bodies in the solar system, such as asteroids, Mercury, and the moons of outer planets," said LADEE program scientist Sarah Noble, at NASA Headquarters in Washington, in a statement Thursday (Nov. 21).

Moon Globe (Image credit: Store)

LADEE's orbit carries the car-size spacecraft around the moon's equator, allowing the probe repeatedly see the moon during lunar day and night. Scientists hope it will be able to see strange, glowing "rays and streamers" in the moon's atmosphere that were first seen in early unmanned lunar photographs and reports from Apollo lunar landing astronauts.

The spacecraft also carries a novel laser communications system to test high-speed data transmission technology for future space missions.

The LADEE spacecraft's low orbit around the moon requires meticulous attention to keep the probe from falling victim to the strange, lumpy lunar gravity.

"Due to the lumpiness of the moon's gravitational field, LADEE's orbit requires significant maintenance activity with maneuvers taking place as often as every three to five days, or as infrequently as once every two weeks," said Butler Hine, LADEE project manager at NASA's Ames Research Center in Moffett Field, Calif., said in a statement. "LADEE will perform regular orbital maintenance maneuvers to keep the spacecraft’s altitude within a safe range above the surface that maximizes the science return."

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Tariq Malik

Tariq is the Editor-in-Chief of and joined the team in 2001, first as an intern and staff writer, and later as an editor. He covers human spaceflight, exploration and space science, as well as skywatching and entertainment. He became's Managing Editor in 2009 and Editor-in-Chief in 2019. Before joining, Tariq was a staff reporter for The Los Angeles Times covering education and city beats in La Habra, Fullerton and Huntington Beach. In October 2022, Tariq received the Harry Kolcum Award for excellence in space reporting from the National Space Club Florida Committee. He is also an Eagle Scout (yes, he has the Space Exploration merit badge) and went to Space Camp four times as a kid and a fifth time as an adult. He has journalism degrees from the University of Southern California and New York University. You can find Tariq at and as the co-host to the This Week In Space podcast with space historian Rod Pyle on the TWiT network. To see his latest project, you can follow Tariq on Twitter @tariqjmalik.