One reason space engineers are notoriously conservative is that the costs of failure are high.

太空工程师出了名的保守一个原因是失败的代价太高。

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The new space agency was given a lot of money and thousands of engineers and technicians from military and civilian agencies.

VOA: special.2009.06.10

Back on Earth, space scientists and engineers worked around the clock to design and test new ideas to help the astronauts survive.

VOA: special.2009.07.22

Space engineers are keen on extending the internet to space to control spacecraft because of the considerable cost and time savings that can be made.

BBC: Earth orbit gets wired

As a result, the "signature" of the pressure drop was very garbled, and sources told MSNBC.com that some space engineers argued there was no increased leak at all, but merely pressure changes caused by these other factors.

MSN: Crew finds ��culprit�� in space station leak

Every tile that's installed or a modification that's made to any space vehicle is closely monitored by NASA. A NASA supervisor was on hand with a clipboard, checking off various tasks by United Space Alliance engineers.

FORBES: NASA Shuttle Exclusive