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 Expansion of the Panama Canal and Its Impact on the World Economy. For decades a canal expansion project has been envisioned. The U.S. first developed plans in 1939, but construction was halted due to World War II. Now that the Panamanian government is in full control of the canal, the expansion has become a reality. The canal expansion project broke ground on Sept. 3, 2007 and is scheduled to be completed by Oct. 20, 2014.