India’s lunar mission Chandrayaan 2, scheduled to launch next month, will carry NASA’s laser instruments that allow scientists to make precise measurements of the distance to the Moon.
Indian mission carries the NASA-owned laser retroreflector arrays.
Retroreflectors are sophisticated mirrors, that reflect laser light signals sent from the Earth.
The signals can help pinpoint precisely where the lander is, which scientists can use to precisely calculate the Moon’s distance from Earth.