Can you tell me the difference between a solar system, a galaxy, and the universe?
user
Okay, here goes: a solar system is basically a star with planets orbiting around it. It usually consists of one or more stars and a variety of planets and other orbiting bodies such as asteroids and comets. A galaxy is basically a large collection of stars, star systems, and various celestial objects organized into a particular shape. Our own galaxy, the Milky Way, is a typical example of a galaxy. The universe is essentially the overall structure that contains all the galaxies, stars, and so forth. So in summary, a solar system is contained within a galaxy, which is contained within the universe. Hope that helps!
assistant
Can you tell me the difference between a solar system, a galaxy, and the universe?
user
Sure, here are the basic differences: 

-A solar system is made up of the sun and the planets revolving around it.  Typically there are multiple solar systems in a galaxy, and multiple galaxies in the universe. 

-A galaxy is a large group of stars, gas, and dust associated with a central supermassive black hole.  Typically galaxies are found in clusters which are associated with larger structures like superclusters and filaments, forming a vast cosmic web in the universe. 

-The universe is the totality of existence, including everything that exists: galaxies, planets, stars, dust, gas, dark matter, etc.  The universe began around 13.8 billion years ago with the Big Bang, and continues to expand at an increasing rate.
assistant
Can you tell me the difference between a solar system, a galaxy, and the universe?