Only moon close enough to us that details of its surface can be seen through a telescope from Earth.
What is Earth's moon?
100
This star is the center of our solar system.
What is the Sun?
100
This man was the first person to walk on the moon.
Who is Neil Armstrong?
100
This mission included the first manned landing on another celestial body.
What is Apollo 11?
200
This planet has craters, no atmosphere, and is the third planet from the sun.
What is Mercury?
200
Smallest moon in the solar system.
What is Deimos?
200
The closest star to our solar system.
What is Proxima Centauri?
200
This man piloted the first American manned orbital mission on February 20, 1962.
Who is John Glenn?
200
This part of the solar system is made up of Mercury, Venus, Earth, and Mars.
What are the inner planets?
300
This planet is made of gas and liquid gas and spins on a neraly horizontal axis.
What is Uranus?
300
This moon belongs to Neptune. It has a surface temperature of -391 degrees, and was found by Voyager 2 to have a thin veneer or methane and nitrogen on top of water ice on its surface.
What is Triton?
300
A faint red dwarf star, discovered in 1916 by E. E. Barnard, recent efforts to discover planets around Barnard's Star have failed.
What is Barnard's Star?
300
She was the first woman in space. Her first trip into space was aboard NASA's space shuttle Challenger in 1983.
Who is Sally Ride?
300
Also known as shooting stars, these space rocks are usually sized from a grain of sand to about a softball. As they enter the Earth's atmosphere, it becomes very hot due to friction like when you rub your hands together for a few moments.
What are meteors?
400
We have explored this planet, and it is most like Earth.
What is Mars?
400
This moon belongs to Pluto, the planet that is now recognized as a dwarf planet.
What is Charon?
400
Our sun can be classified as this type of star.
What is a yellow dwarf star?
400
The first artificial satellite that orbited Earth.
What is Sputnik 1?
400
This part of the solar system is made up of Jupiter, Saturn, Uranus, and Neptune.
What are the outer planets?
500
This planet is furthest away from the sun, and is no longer recognized as a planet.
What is Pluto?
500
A new moon that is only 12 miles in diameter and was discovered in 1990 to be circling Saturn.
What is Pan?
500
The second closest star is a tie between the sister stars of Proxima Centauri.
What is Rigil Kentaurus?
500
This person was a Soviet cosmonaut and the first human in space.