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 completion in 1825 of the Erie Canal, connecting Lake Erie with the Hudson River, was an event of major importance in Michigan history because it greatly facilitated the transportation of passengers and freight between the eastern seaboard and Michigan ports.