Adults take over science museums when night falls

Visitors at the American Museum of Natural History prepare to spend the night under the blue whale exhibit on June 22 in the Milstein Hall of Ocean Life during the adult-only sleepover in New York. (AP Photo/Emiliano Rodriguez Mega)

Sometimes, in the middle of the night, nocturnal creatures are allowed to roam the halls of New York’s American Museum of Natural History, free from shouting and swarming children. They are adult humans, known to sometimes quietly contemplate science with a cocktail.