Top stories: How the universe’s biggest black holes formed and why bed bugs love your dirty laundry | Science

(LEFT TO RIGHT): NASA GODDARD SPACE FLIGHT CENTER; BILL SANDERSON/SCIENCE SOURCE; TAP10/ISTOCKPHOTO

Bed bugs love your stinky laundry. Here’s how to keep them away

On the surface, bed bugs seem ill-equipped for world domination: They can’t fly, jump, or swim; they can survive only on blood; and the world’s foremost apex predators—humans—want them all dead. Yet the parasitic arthropods have recently undergone what scientists are calling a “rapid global expansion,” taking over new territories and growing in number and range. And according to a new study, their globetrotting is made possible in part by an unusual form of transportation: our stinky laundry.

Sloshing, supersonic gas may have built the baby universe’s biggest black holes

A central mystery surrounds the supermassive black holes that haunt the cores of galaxies: How did they get so big so fast? Now, a new, computer simulation–based study suggests that these giants were formed and fed by massive clouds of gas sloshing around in the aftermath of the big bang.

Giant wombatlike creatures migrated across Australia 300,000 years ago

About 300,000 years ago, herds of rhino-sized creatures migrated across the floodplains of east-central Australia, mimicking the treks that zebras and antelopes make across Africa’s Serengeti today. But these migrants weren’t majestic, long-limbed grazers. Instead, they were car-sized relatives of today’s short, stocky wombat. According to a new analysis of a fossil tooth of the long-extinct animal, called Diprotodon, the scenario would be the only known seasonal mass migration among marsupials and their close kin.

Experimental nerve-stimulation therapy partially revives man in long-term vegetative state—but experts urge caution

Fifteen years ago, a 20-year-old man in France suffered…

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