Is this plot of deep space trajectories correct? Did most launch retrograde from Earth? Why do some change direction between planets?
If I wanted to reconstruct an entire Apollo mission's crewed spacecraft trajectories, what are the key sources of historical data I'd look for?
“Parabolic”, suborbital and ballistic trajectories all follow elliptic paths. Is there a generic term for these trajectories?
How do the interferometers on the drag-free satellite LISA receive power without altering their geodesic trajectory?
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