What Do You Know About the Moon?
What is the Moon's diameter compared to Earth?
- The Moon's diameter is about 2,159 miles, approximately one-fourth the diameter of Earth.
How far is the Moon from Earth on average?
- 238,855 miles is right. This distance varies slightly due to the Moon's elliptical orbit.
Who was the first person to walk on the Moon?
- Neil Armstrong made his famous moonwalk on July 20, 1969.
How many human beings have walked on the Moon?
- All 12 of these astronauts were part of NASA's Apollo program.
What causes the phases of the Moon?
- As the Moon orbits Earth, different portions of its surface are illuminated by the Sun, causing its phases.
What is the dark, flat part of the Moon's surface called?
- Mare is correct. These are basaltic plains formed by ancient volcanic eruptions.
What is the name of the mission that first landed humans on the Moon?
- The historic Apollo 11 mission took place in July 1969.
How long is a day on the Moon?
- 29.5 Earth days is right. A lunar day is the length of time it takes for the Moon to rotate once on its axis and corresponds roughly to one lunar cycle (new moon to new moon).
How much gravity is on the Moon compared to Earth?
- About one-sixth. This is why astronauts on the Moon could jump higher and farther than on Earth.
Which of these elements is found in the rocks on the Moon?
- Lunar rocks contain oxygen, silicon, and other elements, but not in a breathable form.