Hey there! So, CCSDS stands for Consultative Committee for Space Data Systems. It's basically a group of really smart people who work together to make sure space missions are successful by creating standardized ways of communicating and handling data.
Imagine you're playing with Legos, and you're building a cool spaceship. In order to make sure it doesn't fall apart or lose any pieces, you need to follow some rules for how to put it together, right? CCSDS is like the group of people who came up with those rules, called "standards," for building the spaceship.
But building a spaceship is one thing, and sending it out into space is another. The spaceship also needs to be able to communicate with Earth once it's up there, which is where CCSDS comes in again. They develop standards for how to send and receive data from space missions, like how to send images from a Mars rover back to Earth.
So, CCSDS tries to make things a lot easier and more organized for space missions by creating rules for building and communicating with the spacecraft. This helps ensure that everything goes smoothly and the space missions are successful!