where sending astronauts without prior knowledge is an evitable risk,” they wrote in the study paper. “This work presents the development and implementation of a novel Tether Management and ...

NASA astronaut Bruce McCandless became the first person to go on a spacewalk without a tether. McCandless was wearing a type ...

NASA confirmed in a report that Italian astronaut Luca Parmitano almost died during a spacewalk outside the International ...

Astronauts and rock climbers have something ... solid options before making a move so they will still be safe even if a tether fails. Before making a move, rock climbers always secure a new ...