In a Galaxy Far, Far Away

The Milky Way Galaxy is not Alone

By Definition

A galaxy is a huge collection of stars, gases, and dust out in space held together by gravitional attraction.


Image taken by the Hubble telescope.

What do You Mean We Aren't the Only Galaxy?

Check out the history behind when and how other galaxies were discovered as well as the scientist behind the discoveries. Please, also Don't forget to take notes on your infographic!


You may also check out the side links while in this webpage.


https://amazing-space.stsci.edu/resources/explorations/groundup/lesson/scopes/mt_wilson/discovery.php

Let's Take a Look at All These Galaxies

Galaxies, part 1: Crash Course Astronomy #38

Spiral Galaxies

  • Spiral galaxies that are spiral in shape, like a pin-wheel.
  • Earth and our solar system is in the Milky Way which is a spiral galaxy.
  • Stars and dust are organized into "arms" that radiate out from a central disk.
  • These galaxies have lots of extra dust and gas and are good places to watch for new stars to form

Elliptical Galaxies

  • Elliptical galaxies are typically shaped like basketballs or footballs
  • They tend to be "clean" galaxies with very little gas and dust
  • These galaxies have a high percentage of old and dying stars so they are good places to watch for supernovas.

Irregular Galaxies

  • Irregular galaxies are oddly shaped with no patterns or set shapes. Many are named "Cloud"
  • Often are the result of gravity from other galaxies close by
  • These galaxies contain many young stars and are a great place to watch for star formations

More Interesting Facts about Galaxies!

Galaxies, part 2: Crash Course Astronomy #39

Sources (because I didn't come up with all this by myself)