Through its "Moon to Mars" program, NASA plans to send the first crewed missions to Mars by the end of the next decade. To ...

NASA's CAPSTONE mini-spacecraft recently marked its 100th trip around the moon in near-rectilinear halo orbit (NRHO). The agency has just granted CAPSTONE a mission extension after operating in ...

defined as a circular orbit 120 kilometers above the moon, as well as in near rectilinear halo orbit, between 3,000 and 70,000 kilometers. NASA has planned to use the near rectilinear halo orbit ...