Scientists Confirm Earth's Core Has Slowed Dramatically, Now Moving In Reverse NDTVEarth’s inner core rotation slows, reverses every 70 years: Study NewsNation NowEarth’s core has slowed so much it’s moving backward, scientists confirm. Here’s what it could mean WSVN 7News | Miami News, Weather, Sports | Fort LauderdaleEarth's inner core reversed direction and is slowing down Business InsiderEarth’s inner core has ‘backtracked’ and is rotating more slowly – experts warn it could change length of o...