Jupiter’s retrograde motion ends around March 10, 2026, when the giant planet appears to reverse direction in the sky. The effect is caused by Earth overtaking Jupiter in its orbit. The bright planet will shine in Gemini near Castor and Pollux throughout March.​Jupiter’s retrograde motion ends around March 10, 2026, when the giant planet appears to reverse direction in the sky. The effect is caused by Earth overtaking Jupiter in its orbit. The bright planet will shine in Gemini near Castor and Pollux throughout March.  ​ science