A Northrop Grumman Cygnus cargo ship that arrived earlier this week is the first U.S. vehicle after the space shuttle to be capable of reboost, but it cannot on its own replace the Russian capability. For its part, NASA provides the lion's share of the space station's solar power and ...
A: Compass error is negligible at or near the earth's magnetic poles. B: It does not have to be checked as often. C: It is reliable due to it's essential simplicity. D: All points on the compass rose are readily visible. ...