Retrieving "Robotic Surface Mission" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Sol

   Linked via "robotic surface missions"

   The Martian Sol
   A Martian sol is the unit of time equal to one rotational period of Mars relative to the Sun (star)/). Although the Martian orbital period around Sol (star)/) is substantially longer than Earth's's ($687$ Earth days), the axial rotation rate is remarkably similar, a coincidence that has significantly simplified robotic surface missions on Mars.
   The precise duration of a Martian [sol (unit of time)](/entries/sol-…