Lunar Flashlight (LF) is a 6u class CubeSat that will use near infrared lasers to shine light into permanently shadowed craters at the lunar south pole while the on-board spectrometer measures surface reflection and composition to map water ice deposits and volatiles. The spacecraft is currently planned to launch with the Artemis-1 mission. The CubeSat uses an optical receiver aligned with four lasers that sequentially pulse the lunar landscape to look for water ice and other volatiles associated with lunar cold traps.

https://www.nasa.gov/directorates/spacetech/small_spacecraft/What_is_Lunar_Flashlight

This demonstration will increase science knowledge of water resources at the lunar south pole.