The process in the Sun's core where hydrogen atoms smash together to create helium, releasing massive amounts of energy.
What is nuclear fusion?
What is a black hole?
What is a light-year?
The massive telescope orbiting Earth that takes incredibly detailed pictures of deep space, helping scientists research distant planets and galaxies.
What is the Hubble Space Telescope?
The scientific term for the oval-shaped, non-circular path that planets travel in around the Sun.
What is an elliptical orbit?
Cooler, darker areas on the surface of the Sun caused by magnetic disturbances.
What are sunspots?
What is the Andromeda Galaxy?
The distance from the Earth to the Sun, which is used as a standard measurement unit inside our solar system.
What is an Astronomical Unit (AU)?
The historic NASA space mission that first successfully landed humans on the Moon in 1969.
What is Apollo 11?
The two invisible forces of the universe that work together to keep planets in a stable orbit around the Sun.
What are gravity and inertia?
A flash of high-energy radiation that bursts from the Sun, sometimes disrupting radio communications on Earth.
What is a solar flare?
Answer: What is a nebula?
What is 13.8 billion years?
The name of the incredibly powerful successor to the Hubble Space Telescope launched by NASA to study the very first stars.
What is the James Webb Space Telescope (JWST)?
The reason we experience distinct seasons on Earth, rather than our distance from the Sun changing.
What is the tilt of the Earth's axis?
What is the corona?
Answer: What is a red dwarf?
The famous theory that states the universe began as a tiny, extremely dense point and has been expanding ever since.
What is the Big Bang Theory?
The type of energy emitted by black holes or stars that space rovers look for when determining if life could have existed on a planet.
What is electromagnetic radiation (or light)?
The only dwarf planet located in the inner solar system, named after an ancient deity of planting and harvests.
What is Ceres?
The measurement of time it takes for light from the Sun to travel to Earth.
What is about 8 minutes?
What are Gamma Ray Bursts?
The name of the phenomenon where light from distant galaxies stretches out and shifts toward the red end of the spectrum because they are moving away from us.
What is redshift?
The international orbiting laboratory where astronauts live and conduct microgravity astrophysics and biology experiments.
What is the International Space Station (ISS)?
The four large, freezing planets at the outer edges of our solar system, classified as gas giants and ice giants.
What are Jupiter, Saturn, Uranus, and Neptune?