By Arnab Banerjee WATCH RELATED VIDEO Submit Recent studies show that the radiation belt of the Earth's inner belt is far weaker. After this exploration, NASA is getting very excited and they are building spacecraft to explore the area. 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.