Explanation:

Ladakh’s administration in association with the Indian Institute of Astrophysics is going to promote astro-tourism in the village of Hanle in the Union Territory.

Hanle has now been declared as a dark sky sanctuary, which would offer tourists an unequivocal dark sky experience here.

 The village of Hanle is located in the Hanle river valley.

A Dark Sky Sanctuary is an area that offers outstanding illumination of the sky, and when it is a sanctuary, it will promote proper illumination without wasting energy and polluting other areas.

Hanle happens to be the location for the highest astronomical observatory in the world.