'No fireworks on ISS,' so astronauts experiment with 'light painting' instead (photos)

A timelapse image showing an astronaut moving from the back to the front of a module in the international space station. at back is an american flag.

With no fireworks allowed on the space station, NASA astronauts improvised with camera flashes to celebrate Independence Day.

International Space Station (ISS) astronaut Matthew Dominick played around with "light painting" — a long exposure in a dark room that illuminates a subject with a light source — during Expedition 71's time off to celebrate the Fourth of July.