Gravity Recovery and Climate Experiment
Okay kiddo, have you ever seen how some things fall down when you throw them up in the air? That's because of something we call gravity. Earth has a very strong gravity that pulls everything towards it, even you and me.
Now, did you know that scientists use gravity to study the earth's climate? They have a special tool called the Gravity Recovery and Climate Experiment (GRACE).
GRACE works by using two satellites that orbit around the earth, kind of like how the moon orbits around the earth. These satellites measure how strong the gravity is in different parts of the earth.
Since the strength of gravity changes depending on mass, the GRACE satellites can detect changes in the mass of the earth's surface. For example, if there's a lot of ice on a certain part of the earth, it will have more mass and therefore a stronger gravity there.
Scientists can use this information to study things like melting ice caps, changes in water levels in oceans, and even track how much groundwater there is in certain places. This can help them understand how the earth's climate is changing over time.
So, basically, the GRACE mission uses two satellites to measure how strong the gravity is in different parts of the earth, in order to study changes in the earth's climate over time. Cool, huh?
Now, did you know that scientists use gravity to study the earth's climate? They have a special tool called the Gravity Recovery and Climate Experiment (GRACE).
GRACE works by using two satellites that orbit around the earth, kind of like how the moon orbits around the earth. These satellites measure how strong the gravity is in different parts of the earth.
Since the strength of gravity changes depending on mass, the GRACE satellites can detect changes in the mass of the earth's surface. For example, if there's a lot of ice on a certain part of the earth, it will have more mass and therefore a stronger gravity there.
Scientists can use this information to study things like melting ice caps, changes in water levels in oceans, and even track how much groundwater there is in certain places. This can help them understand how the earth's climate is changing over time.
So, basically, the GRACE mission uses two satellites to measure how strong the gravity is in different parts of the earth, in order to study changes in the earth's climate over time. Cool, huh?