2016: Mars Retrograde June 5, 2016 Jeffrey L. Hunt Astronomy, Sky Watching Advertisements This chart shows the retrograde motion of Mars during 2016. Opposition occurred on May 22. Mars resumes its apparent eastward motion among the stars on June 30. Share this:Print 2020, Mars During NovemberAstronomy2020, July 24: Jupiter, Saturn, Mars, Morning Planetary MotionAstronomy2020, June 5: Morning Planetary Motion – Jupiter, Saturn, and MarsAstronomy