Scientists working hard to ensure astronaut underwear cleaner than ever

Paolo Nespoli wears a Liquid Cooling and Ventilation Garment as part of research into how to ensure astronauts' underwear stays cleaner for longer. Photo: Robert Markowitz/NASA/dpa

"Not every shooting star is romantic," says Gernot Groemer.

After all, the glowing objects burning up in the sky as they re-enter the atmosphere are not necessarily meteorites heading to Earth.