Organized by Yogesh Mishra , navbharattimes.com , Updated: January 25, 2023 at 3:49 p.m.
Mystery About Earth Inner Core: The inner layer of the Earth completes its rotation in 70 years. This means that its direction changes every 35 years. Its orientation changed in the 1970s. Research has found that the last time the layer changed direction was in 2009. What effect it will have on the surface is not known at this time.
