Okay kiddo, have you ever heard about spaceships that go outside the Earth and explore other places in the universe? Genesis was one of those spaceships! Its purpose was to study the sun and figure out how it was made.
You know how the Earth revolves around the sun and how we see it in the sky during the day? Well, the sun is a big ball of gas that's always burning and giving off light and heat. Genesis wanted to learn more about what the sun is made of and how it's different from other stars.
So, Genesis was sent up into space to study the sun from up close. But, how did it do that? Genesis had special instruments onboard that could collect tiny particles from the sun called "solar wind." These particles are always coming out of the sun, and Genesis caught them with little collector plates.
Once Genesis had collected enough solar wind particles, it flew back to Earth and landed in the desert of Utah. Scientists were able to study those particles and learn a lot about the sun and how old it is.
In short, Genesis was a spaceship that went to space, collected samples of particles from the sun called solar wind, and brought those samples back to Earth for scientists to study.