Andromeda Galaxy

High school (ages 12+)
Space & Astronomy

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/andromeda-galaxy

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific name?Messier 31 (M31), NGC 224
2. What is the galaxy type?Barred spiral galaxy
3. How big is the Andromeda Galaxy?It stretches about 152,000 light‑years across, making it much larger than many other galaxies.
4. When will the Andromeda Galaxy collide with the Milky Way?Scientists predict the two galaxies will merge in about 10 billion years, a very long time from now.

Extragalactic Astronomy: The branch of astronomy concerned with objects outside our own Milky Way galaxy.
Cepheid Variable Stars: Stars that pulsate at a rate directly related to their luminosity, used for measuring cosmic distances.
Dark Matter: A hypothetical form of matter that does not interact with light but exerts gravitational influence.