India inaugurated Asia's largest imaging Cherenkov telescope at Ladakh's Hanle.
It is situated at an altitude of almost 4,300 metres.
The Major Atmospheric Cherenkov Experiment (MACE) observatory is also the world's highest telescope of its kind.
Gamma rays do not reach Earth's surface because the atmosphere absorbs them.
However, they create high-energy particles that emit Cherenkov radiation, similar to a sonic boom, as they travel faster than light through the atmosphere.
MACE's mirrors and cameras capture this radiation, which is then traced back to its cosmic source.