Polar orbits take the satellites over the Earth's poles. The satellites travel very close to the Earth (as low as 200 km above sea level), so they must travel at very high speeds (nearly 8,000 m/s).

TIM PEAKE:Hi I'm Tim Peake. I'm an astronaut based here at the European Space Agency, in Germany. And from December 2015 to June 2016, I spent six months orbiting Earth on the International Space ...

Class 11 Motion In A Plane Mind Map: The motion in a plane chapter in CBSE class 11 physics deals with the motion of objects in two dimensions. The chapter covers topics like vectors and scalars, ...