Okay kiddo, imagine you’re in space and you see a rock flying around. You know why it moves? Gravity!
Everything with mass has a gravity field around it, pulling things towards itself. The bigger the mass, the stronger the gravity field...so planets, stars, and galaxies have the strongest gravity fields.
But what does this have to do with a “gravity field and steady-state ocean circulation explorer?”
Well, scientists made a big satellite that can measure the pull of gravity at different places on Earth. They called it the Gravity field and steady-state Ocean Circulation Explorer, or GOCE for short.
But why do they care about measuring Earth’s gravity?
You see, Earth’s gravity isn't the same everywhere. The gravity is strongest near massive rocks or mountains and weakest in oceans. By measuring these differences, scientists can learn more about what's happening on our planet.
The “steady-state ocean circulation” part of GOCE’s name means it also measures the way water moves around in the ocean. This is important because it affects the weather and marine life. It can also help with predicting things like tsunamis and hurricanes.
So there you have it, GOCE is a really smart satellite that can tell us more about our planet and help us understand how things work.