The Sun
This star is the center of our solar system.
Sun
This body governs the solar system, and provides light to us.
The sun
The phase of the Moon when the entire circle is lit up.
Full Moon
This country launched Sputnik 1, the first artificial satellite, in 1957.
Soviet Union
This is the closest planet to the Sun.
Mercury
The Sun is primarily composed of these two elements
Hydrogen and Helium
This planet is the biggest one in our solar system, also known for its giant red spot.
Jupiter
This dark, flat area on the Moon's surface is Latin for "sea."
Maria or Mare
This man was the first human to orbit the Earth in 1961.
Yuri Gagarin
A "falling star" is actually one of these small pieces of rock or dust burning up in Earth's atmosphere.
Meteor
The process by which the Sun generates energy in its core.
Nuclear Fusion
Also known as Earth’s evil twin, this planet is named after the goddess of love, and is the hottest planet in our solar system.
Venus
The total number of American astronauts who have walked on the Moon.
12
He spoke the famous words, "That's one small step for a man, one giant leap for mankind," on the Moon.
Neil Armstrong
The largest mountain and volcano in our entire Solar System, found on Mars.
Olympus Mons
Sunspots and solar flares are caused by this feature of the Sun.
Sun's Magnetic field
All gas giants have rings, but this one in particular was knocked sideways. so its rings are also sideways.
Uranus
The Moon causes these daily changes in the water levels of Earth's oceans.
Tides
This American woman was the first to fly in space in 1983.
Sally Ride
This planet has a day that is longer than its year.
Venus
In about 5 billion years, the Sun will expand into this stage of its life cycle.
Red Giant
Not the belt that you wear but the one the separates Mars and Jupiter.
Asteroid Belt
The popular but scientifically incorrect term for the hemisphere of the Moon that we never see from Earth. (Hint: Alan Walker)
Dark Side
This famous space telescope was launched in 1990 and has provided spectacular images of the universe for decades.
Hubble Space Telescope
This is the name of the region between Mars and Jupiter where most asteroids in our solar system are found.
Asteroid Belt