Fine Guidance Sensor (HST)
Alright kiddo, do you know what a telescope is? It's a tool that helps us see things far away in space. Well, the HST, or fine guidance sensor, is a special camera that helps the telescope stay pointed exactly where it needs to be to get really clear and accurate pictures of what we want to see.
It's like when you're trying to take a picture of your dog who won't sit still. You need to make sure your camera stays focused on your dog, even if she moves around a little bit. The HST does the same thing, but with objects that are millions of miles away!
The way it works is kind of like a GPS system. It uses lasers to measure how far away stars and other objects are, and then it uses that information to figure out exactly where the HST needs to be pointed. It also has tiny motors that can move the telescope just a little bit to keep everything in focus.
All of this helps us get really amazing pictures of things that are far away in space, like galaxies, nebulae, and even planets in other solar systems. It's like having a superpower that lets us see things that we couldn't see before!
It's like when you're trying to take a picture of your dog who won't sit still. You need to make sure your camera stays focused on your dog, even if she moves around a little bit. The HST does the same thing, but with objects that are millions of miles away!
The way it works is kind of like a GPS system. It uses lasers to measure how far away stars and other objects are, and then it uses that information to figure out exactly where the HST needs to be pointed. It also has tiny motors that can move the telescope just a little bit to keep everything in focus.
All of this helps us get really amazing pictures of things that are far away in space, like galaxies, nebulae, and even planets in other solar systems. It's like having a superpower that lets us see things that we couldn't see before!