Okay kiddo, have you ever heard of a telescope? It's a tool that lets us see faraway objects in space, like the stars and planets. Well, galitzine is a special kind of telescope called a spectrograph.
A spectrograph helps scientists learn more about what things in space are made of. It does this by taking light that comes from an object in space - like a star - and spreading out that light into different colors, kind of like a rainbow.
Each color represents a different part or element that makes up the object. For example, if we see a lot of blue light, that might mean there's a lot of hydrogen gas in the object. If we see mostly red light, that might mean there's a lot of helium gas.
The galitzine spectrograph is really good at doing this - it's like a super-powered microscope for space! Scientists use it to study all kinds of objects in the universe, like stars, galaxies, and even black holes! Thanks for asking, kiddo!