Galaxies

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?



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





Cosmic Yoga

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



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.


How is the Universe Expanding?



Illustration representing the mesh used to describe gravity.


Create An Expanding Universe

You have likely heard about the Universe expanding. Or that redshift can tell us about the movements of galaxies. Both are difficult ideas to imagine and understand.



Cartoon of a person blowing up a balloon. The balloon is covered with galaxies.


Dosbarthu Galaethau

Wedi’i anelu at ddisgyblion 14-18 oed, mae’r gweithgaredd hwn yn cyflwyno’r disgyblion i’r Cynllun Dosbarthu Hubble ar gyfer galaethau ac mae’n rhoi her i’r disgyblion i drio dosbarthu amrywiaeth o alaethau go iawn. Gall fod yn ddefnyddiol hefyd fel ffordd o drafod y gwahanol fathau o alaethau yn y Bydysawd.

Identify the Nebula

Short Intro Text: 

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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