Why do galaxies come in a range of colours?

25 January 2012

Question

I have been classifying galaxys on galaxy zoo and I was amazed by the colours of the galaxys. I saw galaxys in bright blue, deep red, yellow and white; why are they such different colours?

Freddie Alderson
Lagos
Portugal

Add a comment

CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.