An arid planet where, in 2256, Captain Philippa Georgiou and Michael Burnham secretly reopened a dried-up well to save the native Crepusculans from an eighty-nine-year drought.
Crepuscula is a desert planet seen in the opening scenes of the Discovery premiere The Vulcan Hello. Its pre-warp inhabitants, the Crepusculans, depended on a well that had been sealed off by the after-effects of a nearby mining accident, leaving them facing a drought expected to last eighty-nine years.
Captain Georgiou and her first officer Michael Burnham of the USS Shenzhou cross the dunes on foot, keeping out of sight so as not to breach General Order 1, and use a phaser rifle to break open the well.
With a storm closing in and communications blocked, Georgiou leads Burnham on a long walk whose footprints trace a Starfleet delta in the sand, large enough for the Shenzhou to spot from orbit and collect them.