Have you ever seen stars in the sky or heavenly bodies appear to move in a regular pattern? That is what ancient civilizations did, and they tried to come up with an explanation for what they saw.

Astronomy is the study of planets and their satellites (moons), comets and meteors, star systems, galaxies, and clusters of galaxies. Find out how the science of astronomy has changed since ancient civilizations looked up to the heavens.

The very first rockets were probably made by accident. The Chinese made a simple form of gunpowder and used it mostly for fireworks in religious and festive celebrations.

Sir Issac Newton wrote the scientific Laws of Motion. This explained how rockets work and are able to work in outer space.

Since the early days of simple gunpowder rockets we have developed vehicles for traveling into outer space. Rockets have opened the universe to all types of exploration.

What would happen if you threw a ball in the air? What would happen if you threw the same size ball in outer space?

Have you ever kicked a ball forward and it went backward? Have you ever thrown a ball up and it went down?

Have you ever leaned up against a wall, pushed hard, and your body does not go backward? Isaac Newton came up with an idea to explain all of this!

Tycho Brahe was considered one of the greatest astronomers of his time. Find out how his observations of the night sky and his discovery that the Earth, moon, and other planets actually did orbit our Sun were important to space exploration.