
H is for Highly Elliptical Orbit.

I is for International Space Station.

J is for James Webb Space Telescope.

K is for KaBOOM

John Young is the only astronaut to have flown during the Gemini, Apollo and space shuttle programs. He was the…

L is for Launch.

M is for Mission.

N is for Navigation.

O is for Optical Communications.

P is for Passive Sensor.