Chapter 2: Reference Systems - NASA Science

Page One | Page Two | Page Three The Equinoxes The equinoxes are times at which the center of the Sun is directly above the equator, marking the beginning of spring and autumn. The day and night would be of equal length at that time, if the Sun were a point and not a disc, […]

Chapter 2: Reference Systems - NASA Science

Chapter 10: Telecom - NASA Science

If Jupiter is a gas giant as I and others have been taught, where does the gravity come from that keeps Jupiter and the moons orbiting together? - Quora

Given Jupiter's size, its moons must have little effect on it. What would happen if those moons orbited any of our other planets? - Quora

Space Launch System (SLS) - NASA

Why is Jupiter a gaseous planet while its moons are not? - Quora

Why do Jupiter and Saturn have more satellites (moons) than the

Chapter 11: Onboard Systems - NASA Science

Jupiter has more than 67 moons. The largest moon, Ganymede, orbits the planet with a constant speed. Is Ganymede accelerating? - Quora

Do all moons, natural satellites, orbit their planets the same direction as our own moon? - Quora

Chapter 13: Navigation - NASA Science