The explosion was caused by a meteoroid that hit the lunar surface . It was visible on Earth without a telescope . Comment: The meteoroid was traveling 56,000 mph when it banged into the moon .
The explosion was caused by a meteoroid that hit the lunar surface . It was visible on Earth without a telescope . NASA sees hundreds of lunar meteoroid impacts on the moon each year . The meteoroid was traveling 56,000 mph when it banged into the moon .