Two spacecraft engineers join a grouping of vehicles providing a comparison of three generations of Mars rovers developed at NASA's ...

Stuart Clark, a spacecraft thermal engineer at the Jet Propulsion Laboratory, said a plate that is perfectly absorptive and emittive on both sides would reach 1,600 degrees at about the 13-million-mile mark.

This was because medical staff and spacecraft engineers were unsure how a human might react to weightlessness, and therefore it was decided to lock the pilot's manual controls.

David M. Durham, a spacecraft engineer at the Jet Propulsion Laboratory, recalled that Mr. Johnson was known not only for professional excellence but for testing his wife's patience with his moonlighting.

Guenter Wendt, 85, German-born American spacecraft engineer (NASA ), heart failure and stroke.

After the hydrogen was exhausted, spacecraft engineers were able to re-establish attitude control.

After the war, he became the USSR's chief rocket and spacecraft engineer, essentially the Soviets' counterpart to von Braun.

Anxiety is running high among scientists and spacecraft engineers, who have not waited out a countdown for flights to Mars since 1975.

Once every few days or so, during slack periods, the spacecraft engineers at the CCCP-NASA-ESA Deep Space Network communications center would take the spacecraft through its engineering check list.

However, it took a few hours of work with the Deep Space Network and the spacecraft engineers before they knew exactly how the spacecraft was oriented with respect to the stars when the pulses were at their maximum.