jan 28, 1519 - Kuiper Belt
Description:
1) Contains hundreds of thousands of icy bodies that can be as big as 100 kilometers.2) The ices go back to the formation of our solar system.
3) Spans over a distance of 4.5 to 7.4 billion kilometers from Sun.
Added to timeline:
Date:
jan 28, 1519
Now
~ 507 years ago