Galaxy

Investigate: Measure the Size of a Galaxy

Have you ever wondered how big a galaxy is? They contain millions to billions of stars but what does that really mean for size?

Reading about sizes in a book is one thing, but what if you could make an observation of a galaxy and then measure its size?

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Picture of a galaxy with a ruler next to it and question marks


Ricardo Schiavon

Headshot of Ricardo Schiavon
Ricardo Schiavon
Credit: ARI/LJMU

Occupation: Astrophysicist

Research Areas: Galaxy formation, Observational astronomy

 

"I consider myself extremely lucky to be where I am, do what I do, and to be surrounded by so many amazing people here in Liverpool."

 

JWST Wordsearch

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Cosmic Yoga

Connecting with the natural world through topics like space and astronomy may help improve your mental health and wellbeing.

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A boy bending to make the shape of the crescent Moon to his right and a girl with her arms outstretched mirroring the shape of the galaxy above her against a dark blue background with faint stars.


Identify the Nebula

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The word nebula is used to talk about any dusty, fuzzy objects in space but they can be very different things! Can you classify each image into its proper category?

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Galaxies Quiz

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What do you know about classifying galaxies? Challenge yourself with this quiz.

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Space Quiz

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Think you have an astronomical amount of knowledge about space? Test your knowledge using this quiz.

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