He did this by relating the light-year to the Astronomical Unit â the Earth-sun distance. One Astronomical Unit, or AU, equals about 93 million miles (150 million km). Another way of looking at it: the Astronomical Unit is a bit more than 8 light-minutes in distance. A light beam takes 8 minutes to travel the 93 million miles (150 million km) from the sun to the Earth.
Lake Superior sits between Ontario, Canada and New York. Lake Ontario is mainly fed by the waters of Lake Erie, which are transported via the Niagara River. Lake Ontario drains into the St. Lawrence River. Lake Michigan is the third largest of the Great Lakes and the only one entirely within the United States.
The head waters of these Great Lakes start in Lake Superior...all of the water rivers, creeks streams etc running into Lk Superior are feeding Niagra Falls as are the rivers and creeks running into Lake Huron, Lake Michigan Lake St. Clair, Lake Erie It has a long journey but that is where it goes. Source(s):