Alien Hairspray May Help Us Find E.T.

Hairspray might one day serve as the sign that aliens have reshaped distant worlds, researchers say. Such research to find signs of alien technology is now open to funding from the public.

Science fiction has long imagined that humans could transform hostile alien worlds into livable ones, a procedure known as terraforming. For instance, to colonize Mars, scientists have suggested warming the red planet and thickening its extraordinarily thin atmosphere so that humans can roam its surface without having to wear spacesuits. To do so, plans to terraform Mars often involve vast amounts of greenhouses gases to trap enough heat from the Sun, forcing carbon dioxide frozen on the planet's su…
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