Planets
This is the smallest planet in our solar system.
What is Mercury?
Earth's only natural satellite.
What is the Moon?
This is the name of the star at the center of our solar system
What is the Sun?
This was the first artificial satellite to orbit Earth, launched by the Soviet Union in 1957.
What is Sputnik 1?
A shooting star is actually one of these burning up in Earth's atmosphere.
What is a meteor?
This term describes the unknown force causing the expansion of the universe to accelerate
What is dark energy?
This is the name of the faint glow of radiation that fills the universe, often considered the "afterglow" of the Big Bang.
What is the Cosmic Microwave Background (CMB)?
This planet is known as the "Red Planet" due to its reddish surface
What is Mars?
This moon of Jupiter is the largest in the solar system
What is Ganymede?
The Milky Way is this type of galaxy.
What is a spiral galaxy?
This American astronaut was the first human to walk on the Moon.
Who is Neil Armstrong?
This is the name for the path an object takes as it revolves around another object in space
What is an orbit?
This theoretical type of matter does not emit light and is detected by its gravitational effects.
What is dark matter?
The observation that galaxies are moving away from us in all directions supports this principle, providing evidence for an expanding universe.
What is Hubble's Law?
This planet is famous for its bright rings made of ice and rock.
What is Saturn?
This moon of Saturn has a thick atmosphere and lakes of liquid methane
What is Titan?
The closest star system to our solar system
What is Alpha Centauri?
This rover landed on Mars in 2021 to search for signs of ancient life
What is Perseverance?
This colorful light display occurs when solar particles collide with Earth's atmosphere near the poles
What is an aurora?
The region beyond Neptune filled with icy bodies and dwarf planets is called this.
What is the Kuiper Belt?
This scientist discovered that galaxies farther away from us are moving faster, leading to the conclusion that the universe is expanding.
Who is Edwin Hubble?
This planet rotates on its side compared to the rest of the planets.
What is Uranus?
This volcanic moon of Jupiter has over 400 active volcanoes
What is Io?
These are massive explosions marking the death of a star.
What are supernovae?
This is the name of the telescope that has provided stunning images of space since 1990
What is the Hubble Space Telescope?
This is the invisible region of space where gravity is so strong, not even light can escape.
What is a black hole?
The event marking the start of our universe approximately 13.8 billion years ago
What is the Big Bang?
The relative abundance of light elements like hydrogen and helium in the universe matches predictions made by this Big Bang-related theory.
What is Big Bang Nucleosynthesis?
This planet is the hottest in our solar system, despite not being the closest to the Sun.
What is Venus?
This icy moon of Neptune may have an underground ocean that could harbor life.
What is Triton?
This is the largest type of star known, with radii hundreds of times greater than the Sun.
What is a red supergiant?
This is the name of the space probe that traveled to interstellar space, carrying a golden record of Earth sounds.
What is Voyager 1?
These are the huge, glowing clouds of gas and dust where stars are born
What are nebulae?
This is the term for planets orbiting stars outside our solar system
What are exoplanets?
We are all made of this.
Star stuff (elements created in the centres of Stars)