astronaut

Researchers create a melanin particle containing selenium, providing even more protection from harsh UV rays. These nanoparticles can be incorporated into clothing - providing astronauts a very lightweight alternative to lead shielding.

by Lisa Heppler figures by Jovana Andrejevic Weightlessness is something many of us have dreamed about since we were kids. We have seen footage of astronauts floating around the International Space Station playing Ping-Pong with balls of water and…