June 2018
Striding through space
... of the Skylab space station. When the Shuttle came along with a requirement for a similar device for extra vehicular activity (EVA) work, McCandless was well placed to help manufacturer Martin Marietta develop it. By the time he was assigned...
June 2019
A reluctant American hero
... first person to step onto the lunar surface. After a 2.25-hour extra-vehicular activity (EVA) and a 21.5 hour stay, the Eagle blasted off from... LM. A felt-tip pen was later used to activate the switch. Armstrong was clearly determined that no abort...
05 April 2016
XCOR Aerospace Welcomes New Board Members
... time veteran astronaut with an extraordinary record of spending over 167 hours in space (In fact, Lopez Alegria’s Extra Vehicular Activities, or ‘space walks’, are only exceeded by one other astronaut). Stuart Witt, General Director of the Mojave...
January 2016
200 Days in Space: Living in Orbit
...Sometimes, if our colleagues bug us, we can actually put them outside! During my stay, there were three EVAs (extra-vehicular activity) or spacewalks, so my colleagues Butch and Terry got to go outside three times. We found that the best way to train...
August 2017
Planning for health, sex and sleep on a future Mars colony
... as habitats that reach sufficiently deep underground has also been proposed. In general, short-duration human extra vehicular activities (EVA) of a few hours at a time outside of the habitat would not likely result in significant radiation exposure...
19 July 2019
The day humanity walked on the Moon
...11 Lunar Module Pilot Buzz Aldrin's bootprint. Aldrin photographed this bootprint about an hour into their lunar extra-vehicular activity on July 20, 1969, as part of investigations into the soil mechanics of the lunar surface. This photo would later...
