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Space
Space
Science
Andrew Jones

Lunar laser: China makes 1st daytime laser-ranging measurement from Earth to the moon

Earth China
Composite image of the moon created using data gathered by the joint NASA-DoD Clementine mission in 1994.

China has achieved a milestone feat, making the first-ever laser ranging measurement from Earth to the moon during the daytime.

Researchers at Yunnan Observatories under the Chinese Academy of Sciences (CAS) used an infrared lunar laser ranging system of a recently upgraded 1.2-meter (3.9 feet) telescope to ping a small laser retroreflector on the Tiandu 1 satellite orbiting the moon.

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