The Lunar Crater Observation and Sensing Satellite (LCROSS) is a robotic spacecraft launched in 2009 to assess the nature of hydrogen detected in the polar region of the Moon. It was launched immediately after the discovery of lunar water by Chandrayaan-1. It consisted of two parts – a projectile that would hit into a crater to create a giant plume of debris and a spacecraft that would fly through the plume to find its composition.
The objective of LCROSS mission is to explore the presence of water in the form of ice in a permanently shadowed crater near a lunar polar region. It had successfully confirmed the presence of water in the southern lunar crater Cabeus.


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