Can someone share some info about motion, speed, acceleration, and velocity?

I'll explain them as best I can linking them together:

Motion - Describes general movement of an object, has no unit, an object is either in motion or it is not.
Speed - A scalar quantity, that is to say it can only be positive and has no direction to it. This is measured in m/s.
Acceleration - The differential of a speed time graph, it is the rate of change of speed (i.e. how much speed changes per unit time), and is measured in m/s/s (m/s^2)
Velocity - The Vector version of speed, that is to say it has a direction and can be negative. The velocity of an object also tells us the direction it is travelling, rather than merely how fast it is travelling.

Answer it orbits high above earth to gain clearer images of light, it magnifies images relative to the human eye, it records most of the universe as it was in the past, not as it is now;