Mars, NASA
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Oops! NASA Once Lost a $125 Million Spacecraft Because Engineers Forgot to Convert to Metric
The accidental use of Imperial instead of metric units meant doom for the Mars Climate Orbiter.
Ahead of a potential April 1 launch of the Artemis II mission from Florida, here's what to know about NASA's plans to one day send humans to Mars.
Space.com on MSN
NASA's '1st nuclear-propelled interplanetary spacecraft' will send helicopters to Mars in 2028
NASA plans to launch its first nuclear-powered interplanetary spacecraft in 2028, a probe called Space Reactor-1 Freedom that will carry helicopters to Mars.