The Solar System
This is the closest planet to the Sun.
What is Mercury?
This star is at the center of our solar system.
What is the Sun?
These people travel and work in space.
What are astronauts?
Earth has one natural object orbiting it called this.
What is the Moon?
This force keeps planets orbiting the Sun.
What is gravity?
This planet is known as the “Red Planet.”
What is Mars?
A group of stars forming a pattern in the sky is called this.
What is a constellation?
This was the first artificial satellite launched into space in 1957.
What is Sputnik 1?
These chunks of ice and dust develop glowing tails when they approach the Sun.
What are comets?
This is the speed at which light travels in a vacuum: about 186,000 miles per second.
What is the speed of light?
This is the largest planet in our solar system.
What is Jupiter?
This galaxy contains our solar system.
What is the Milky Way?
This mission first landed humans on the Moon in 1969.
What is Apollo 11 Moon Landing?
This term describes a rock from space that survives burning through Earth’s atmosphere and lands on the ground.
What is a meteorite?
This scientist developed the law of universal gravitation.
Who is Isaac Newton?
This planet is famous for its large ring system.
What is Saturn?
This is the name of the closest star system to Earth after the Sun.
What is Alpha Centauri?
This space telescope launched in 1990 has captured detailed images of distant galaxies and nebulae.
What is the Hubble Space Telescope?
This moon of Jupiter is believed to have a large ocean beneath its icy surface.
What is Europa?
This theory by Albert Einstein explains how gravity affects space and time.
What is Theory of Relativity?
This dwarf planet was once considered the ninth planet in our solar system.
What is Pluto?
This powerful explosion marks the death of a massive star.
What is a supernova?
This rover landed on Mars in 2021 to search for signs of ancient life.
What is Perseverance?
This region between Mars and Jupiter contains thousands of rocky objects orbiting the Sun.
What is the asteroid belt?
This mysterious object has gravity so strong that not even light can escape it.
What is a black hole?