A chorus of cheers and applause echoed through the NASA Jet Propulsion Laboratory after the interplanetary rover Curiosity signaled it had survived a harrowing plunge through the thin Mars atmosphere.
A chorus of cheers and applause echoed through the NASA Jet Propulsion Laboratory after the interplanetary rover Curiosity signaled it had survived a harrowing plunge through the thin Mars atmosphere.
Extra-vehicular activity (EVA) is work done by astronauts outside the spacecraft. They are tethered so that oxygen can be supplied, and no propulsion is needed to return.