Neil deGrasse Tyson explains why some people see ghosts

Up to 18% of Americans say they have seen a ghost, and there might be scientific explanation for it. A specific tone, called the ‘ghost frequency’ could create a vibration that shakes the eyes and creates visual distortions.

Follow Tech Insider: On Facebook

Business Insider Emails & Alerts

Site highlights each day to your inbox.

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.