Galaxies
A galaxy is a large collection of stars, dust and gas. They are surrounded by dark matter, and are held together by gravity.
Edwin Hubble
Occupation
Astronomer, Cosmologist
Year born
1889
Research Areas
Galaxies, Extra-galactic astronomy, Observational cosmology
Investigate the Milky Way
Investigate 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?
Ricardo Schiavon
Early Life
Ricardo was born in Rio de Janeiro, Brazil. His first degree in astronomy is from the Federal University of Rio de Janeiro. Then in 1993, he got a master's degree from the Observatório Nacional in Brazil. Ricardo moved to the University of São Paulo, Brazil to work on a PhD. He was awarded his PhD in 1998.
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
Search for words related to the James Web Space Telescope.
Cosmic Yoga
Connecting with the natural world through topics like space and astronomy may help improve your mental health and wellbeing.
Identify the Nebula
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?
Galaxies Quiz
What do you know about classifying galaxies? Challenge yourself with this quiz.