Question

What is a galaxy's bulge?

Answer 1

In astronomy, a bulge is a tightly packed group of stars within a larger formation. The term almost exclusively refers to the central group of stars found in most spiral galaxies (see galactic spheroid). Bulges were historically thought to be elliptical galaxies that happened to have a disk of stars around them, but high-resolution images using the Hubble Space Telescope have revealed that many bulges lie at the heart of a spiral galaxy. It is now thought that there are at least two types of bulges: bulges that are like ellipticals and bulges that are like spiral galaxies.

Answer 2

• A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems.
• There are approximately 70,000 million stars in the universe. The solar system where our earth exists is in the Milky Way Galaxy