2nd October 2019

howstuffworks
18

What keeps things together in the Milky Way?

The Milky Way is actually a galaxy -- a large system of stars, gas (mostly hydrogen), dust and dark matter that orbits a common center and is bound together by gravity. Contrary to popular belief, our solar system is not at the center of the galaxy. The Milky Way is but one of billions of galaxies in the universe.

Furthermore, what is a galaxy and what holds it together?

Gravity. All of the stars of a galaxy are all attracted to each other. This attraction is weak because the stars are very far apart, but it is enough to keep the galaxies together. There is also a large amount of matter that has never been seen (called "dark matter") that helps keep galaxies together.

What forces hold the solar system together?

Transcript of What Holds the Solar System Together? The force of gravity is the force with which the earth, moon, or other massively large object attracts another object towards itself. All objects on earth feel a force of gravity that is directed "downward" towards the center of the earth.

How does dark matter holds galaxies together?

First proposed about 80 years ago, dark matter is thought to be the "glue" that holds galaxies together. Astronomers suggest that dark matter provides vital "scaffolding" for the universe, forming a framework for the formation of galaxies through gravitational attraction.
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