By Arnab Banerjee WATCH RELATED VIDEO Submit The reason why the inner core remains in solid format is finally revealed. Scientists believe that the excessive pressure is not the only reason besides that the atomic structure plays a major role. Advertisement © 2017 HNGN, All rights reserved. Do not reproduce without permission. Advertisement 0 COMMENTS CLOSE COMMENT Get HNGN's Top Stories Newsletter Everyweek You have already subscribed. Thank you.