Space dust hits the Earth every day in the form of meteorites. As much as 300 tonnes of the stuff falls to the Earth each day.  Of course, most of it is dust or small rocks, and goes unnoticed by the majority of people.  But every so often, a larger rock plummets to Earth, and if it’s big enough, it will make it’s presence known.  One such meteor flew through the atmosphere less than 48 hours ago in the Northeast USA. The bright flashes occur when a space rock, called a meteoroid, hits the atmosphere of the Earth, which rapidly...