Northern Ireland Key Stage 5

In 2017, the Liverpool Telescope was involved in the investigation of an exciting new discovery: the star system TRAPPIST-1.

Galaxies are vast collections containing billions of stars, planets, and massive clouds of gas, dust, and ice. Understanding galaxies is a key part of astronomy. One important tool for studying them is classification—grouping them into a few different categories. 

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.