Watch: Massive meteor explosion rattles houses across northeastern US

 A meteor exploded over the northeastern United States on Saturday, unleashing a sonic boom equivalent to 300 tons of TNT. The bright daytime fireball, estimated to be about three feet wide, fragmented approximately 40 miles above the ground, startling residents across multiple states and causing buildings to shake. A meteor exploded over the northeastern United States on Saturday, unleashing a sonic boom equivalent to 300 tons of TNT. The bright daytime fireball, estimated to be about three feet wide, fragmented approximately 40 miles above the ground, startling residents across multiple states and causing buildings to shake.