The solar system includes moons (and some of those moons have moons), supernova explosions, comets, meteors, asteroids, and plain old space dust. To be sure, there are more objects in our solar system, some of which have yet to be discovered.
The canal was not complete in 1825, however. Many years after opening, people decided the canal needed to be a bit wider and larger. People wanted to connect more waterways to the Erie Canal in order to get full use out of the canal system. So, between 1836 and 1862 the Erie Canal was made wider and was connected to other canals.
The production of smaller boats declined drastically but did survive on the open sections. Most of the lateral canals were closed by 1878 with only the Black River Canal lasting until the eventual close of the entire system in 1917. The growth of steam power on the canal and steel boat construction eliminated the need for a waterway as protected as the Old Erie.