Even though no trick-or-treaters knock on the International Space Station's front hatch, crew members aboard the orbiting laboratory still find ways to get into the Halloween spirit, according to NASA. Astronauts dress up either individually or as an entire crew, wearing costumes that are sometimes spooky, sometimes scary, but always creative, the agency said. Many of the outfits are designed from materials already available aboard the station, NASA noted.
Source: NASA.

