Do all stars and planets rotate? Are there any that have been discovered that do not rotate? Astronomy Introduction to Astronomy Astronomy Basics 1 Answer Sarah. Sep 18, 2016 No not all rotate Explanation: Some planets are tidally locked meaning that they don't rotate and one side is always facing the sun. Our moon is tidally locked and the planet Proxima B is as well. Answer link Related questions Why do astronomers use scientific notation to describe sizes? What is astronomy? What types of jobs are available for those who hold a degree in astronomy? What is the meaning of the word astronomy? How would you calculate the energy of a photon with a known frequency? What is the difference between astronomy and astrology? What schools are renowned for their astronomy programs? What is a meteor? What occupations are there in the astronomy field? How is the acceleration of gravity calculated for planets? See all questions in Astronomy Basics Impact of this question 1653 views around the world You can reuse this answer Creative Commons License