meteor, NASA and TNT Blast
Digest more
NASA said the energy released when the meteor broke up was equivalent to about 300 tons of TNT.
Meteor was travelling at 75,000 miles per hour (more than 120,000 km/h) at an altitude of 40 miles when it broke apart
A meteor exploded over Massachusetts, creating a powerful sonic boom that rattled homes as it broke apart high in the atmosphere.