How Do Satellites Travel Through Space? Gravity—combined with the satellite’s momentum from its launch into space—cause the satellite to go into orbit above Earth, instead of falling back down to the ground. Do satellites need fuel? The gravitational force between satellite and earth provides the necessary centripetal force for the satellite to orbit the earth.
How Do Satellites Travel So Far? A satellite orbits Earth when its speed is balanced by the pull of Earth’s gravity. Without this balance, the satellite would fly in a straight line off into space or fall back to Earth. Why are satellites so far away? Satellites need to be very far away from earth
How Is Doppler Radar Used In Meteorology? The Doppler radar used in weather forecasting measures the direction and speed, or velocity, of objects such as drops of precipitation. This is called the Doppler Effect and is used to determine whether movement in the atmosphere is horizontally toward or away from the radar, which aides in
How Do Weather Balloons Collect Data About Weather? An instrument called a radiosonde How do weather balloons send information to weather stations on the ground? As soon as the balloon begins to float, the radiosonde gets to work, beaming data to weather computers on the ground. In real time, these computers plot the data into