Planets
What is Mars?
What is the name of Earth's natural satellite?
What is the Moon?
Which celestial body is at the center of our solar system?
What is the Sun?
What is a comet primarily made of?
What are ice, dust, and rock?
What is the name of the first human-made satellite?
What is Sputnik?
Which planet is known for its rings?
What is Saturn?
Why does Earth experience day and night?
What is Earth's rotation?
What is the main component of the Sun?
What is hydrogen?
What is the term for a star's explosion?
What is a supernova?
What profession studies celestial bodies?
What is an astronomer?
What is the largest planet in our solar system?
What is Jupiter?
Why do seasons change on Earth?
What is the tilt of Earth's axis as it orbits the Sun?
Why is the Sun important to life on Earth?
What is it provides energy and heat?
What are shooting stars actually?
What are meteoroids burning in Earth's atmosphere.
What is the name of the telescope used to capture deep-space images?
What is the Hubble Space Telescope?
What is the smallest planet in the solar system?
What is Mercury?
What is the term for the path planets take around the Sun?
What is an orbit?
What is nuclear fusion?
What causes a solar eclipse?
What is the Moon passing between Earth and the Sun?
Which planet was the first to be visited by a spacecraft?
What is Venus?
Which planet is tilted on its side?
What is Uranus?
What is the asteroid belt?
What is the region between Mars and Jupiter where many small rocky bodies orbit the Sun?
What happens when a star like the Sun runs out of fuel?
What is it becomes a white dwarf?
What is a black hole?
What is a region of space where gravity is so strong that nothing, not even light, can escape.
What is the name of the spacecraft that carried humans to the Moon?
What is Apollo 11?