Moon Trivia Questions and Answers

Tap a choice for the answer and its reason: trivia questions about the Moon, from Theia to Tranquility Base.

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The mass of the Moon is what fraction of the mass of the Earth?

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Scored round: 20 questions, no time limit.

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Unofficial practice questions, not affiliated with any school, exam board or quiz show. Bank checked October 3, 2026.

How it works

Four rounds on our nearest neighbor: what the Moon is made of, how it moves and why it changes shape, how people studied and reached it, and the flight of Apollo 11.

Read the full guide

Apollo 11 trivia questions and answers

The last round has the trivia questions about Apollo 11: the emblem, the cannon behind the name Columbia, the words from Tranquility Base, the mineral named for the crew and the Soviet probe that was circling at the same time. These moon landing trivia questions and answers stop at splashdown.

Full moon trivia questions and answers

Orbit, phases and the full moon asks the order of the phases, what a supermoon is, why an eclipsed Moon is called a blood moon and how bright earthshine is beside a full moon. Tap a choice to check it; the reason and the article it was read in appear with the answer.

Tips
  • The Moon as a world and Apollo 11 have the most hard questions; start families on the phases round.

Questions and answers

What are some easy Moon trivia questions?

What does maria, the name of the dark plains, mean? What is the far side often wrongly called? In which ocean did Apollo 11 splash down? The answers are seas, the dark side and the Pacific.

How long does the Moon take to go around the Earth?

About 27.3 days measured against the fixed stars. Because the Earth is moving around the Sun at the same time, the cycle of phases, the lunar month, takes slightly longer.

What did Armstrong say when Apollo 11 landed?

"Houston, Tranquility Base here. The Eagle has landed." About six hours later, stepping onto the surface, he said: "That's one small step for [a] man, one giant leap for mankind."

How were the answers checked?

Each was read on October 3, 2026 in the English Wikipedia article Moon or Apollo 11, whichever the question links. Missions still to come are not asked, and no living person is an answer or a choice.

All 52 questions with answers

The Moon as a world 12

  • The dark plains of basalt on the Moon are called maria. What does the word mean? Answer: Seas. Source: Wikipedia: Moon
  • Dust lifted above the lunar surface stays up for approximately how long? Answer: 10 minutes. Source: Wikipedia: Moon
  • Fault scarp cliffs suggest that the Moon has shrunk by about how much in the past billion years? Answer: 90 meters. Source: Wikipedia: Moon
  • In the prevailing theory, the Moon formed after a Mars-sized body struck the early Earth. What is that body named? Answer: Theia. Source: Wikipedia: Moon
  • The mass of the Moon is what fraction of the mass of the Earth? Answer: 1/81. Source: Wikipedia: Moon
  • The Moon is the largest and most massive natural satellite in the Solar System when measured against what? Answer: Its parent planet. Source: Wikipedia: Moon
  • The reflectance of the surface of the Moon is comparable to that of which everyday material? Answer: Asphalt. Source: Wikipedia: Moon
  • Roughly how many craters wider than one kilometer are on the near side of the Moon? Answer: 300,000. Source: Wikipedia: Moon
  • What are the hidden mares called that are likely older than the exposed ones? Answer: Cryptomares. Source: Wikipedia: Moon
  • What is the dust that covers the lunar surface called? Answer: Regolith. Source: Wikipedia: Moon
  • Which is the largest crater on the Moon? Answer: The South Pole-Aitken basin. Source: Wikipedia: Moon
  • Which spacecraft carried the radar experiment that pointed to frozen pockets of water near the lunar surface in 1994? Answer: Clementine. Source: Wikipedia: Moon

Orbit, phases and the full moon 13

  • About how long does the Moon take to orbit the Earth once with respect to the fixed stars? Answer: 27.3 days. Source: Wikipedia: Moon
  • About how often do high tides occur? Answer: Every 12 hours and 25 minutes. Source: Wikipedia: Moon
  • About what share of the surface of the Moon can be seen from Earth over time? Answer: 59 percent. Source: Wikipedia: Moon
  • The apparent size of the Moon in the sky is roughly the same as that of which other body? Answer: The Sun. Source: Wikipedia: Moon
  • Atomic clocks show that the day on Earth grows longer by about how much every year? Answer: 17 microseconds. Source: Wikipedia: Moon
  • By what name is the synodic month commonly known? Answer: The lunar month. Source: Wikipedia: Moon
  • Each of the four intermediate phases of the Moon lasts about how long on average? Answer: Seven days. Source: Wikipedia: Moon
  • Earthshine makes a night on the near side of the Moon about how many times brighter than a night on Earth lit by the full moon? Answer: 43 times. Source: Wikipedia: Moon
  • In the first half of the cycle of phases the order is new moon, crescent, quarter, gibbous and then what? Answer: Full moon. Source: Wikipedia: Moon
  • Lunar eclipses are sometimes called blood moons because the Moon takes on which color? Answer: Red. Source: Wikipedia: Moon
  • What is a full moon or new moon called when it comes at the closest point of its orbit to Earth? Answer: A supermoon. Source: Wikipedia: Moon
  • What is the far side of the Moon often inaccurately called? Answer: The dark side. Source: Wikipedia: Moon
  • What is the number of days since the most recent new moon called? Answer: The age of the Moon. Source: Wikipedia: Moon

Watching and reaching the Moon 12

  • In which year was the telescope developed and reported on? Answer: 1608. Source: Wikipedia: Moon
  • Lunar craters were thought to be volcanic until the 1870s, when who proposed that collisions had formed them? Answer: Richard Proctor. Source: Wikipedia: Moon
  • Notched bones as much as 20,000 to 30,000 years old are believed by some to mark what? Answer: The phases of the Moon. Source: Wikipedia: Moon
  • One of the earliest possible depictions of the Moon is a rock carving of 3,000 BCE at Knowth. In which country is Knowth? Answer: Ireland. Source: Wikipedia: Moon
  • Ptolemy put the mean distance of the Moon at how many times the radius of the Earth? Answer: 59. Source: Wikipedia: Moon
  • What is the name of the lunar rover that China landed in 2013? Answer: Yutu. Source: Wikipedia: Moon
  • What is the oldest identified depiction of the Moon together with other features of the sky? Answer: The Nebra sky disc. Source: Wikipedia: Moon
  • Which Apollo mission set up the first dedicated telescope on the Moon, in April 1972? Answer: Apollo 16. Source: Wikipedia: Moon
  • Which mission, in 1972, was the last to take a crew to the surface of the Moon? Answer: Apollo 17. Source: Wikipedia: Moon
  • Which orbiter was the first Chinese spacecraft to reach the Moon? Answer: Chang'e 1. Source: Wikipedia: Moon
  • Which spacecraft made the first soft landing on the Moon, in 1966? Answer: Luna 9. Source: Wikipedia: Moon
  • Which treaty of 1967 defines the Moon and all outer space as the province of all mankind? Answer: The Outer Space Treaty. Source: Wikipedia: Moon

Apollo 11 15

  • A simulator instructor suggested adding what to the eagle on the emblem, to stand for a peaceful mission? Answer: An olive branch. Source: Wikipedia: Apollo 11
  • About how long after the landing did Armstrong become the first person to walk on the Moon? Answer: Six hours. Source: Wikipedia: Apollo 11
  • About how much lunar material did Apollo 11 collect? Answer: 21.5 kilograms. Source: Wikipedia: Apollo 11
  • After the landing, Armstrong radioed: "Houston, ___ here. The Eagle has landed." Which words are missing? Answer: Tranquility Base. Source: Wikipedia: Apollo 11
  • Apollo 11 was which crewed mission of the Apollo program? Answer: The fifth. Source: Wikipedia: Apollo 11
  • The command module Columbia was named after Columbiad. What was Columbiad? Answer: A giant cannon in a Jules Verne novel. Source: Wikipedia: Apollo 11
  • For how long in each orbit was the command module out of radio contact with Earth, behind the Moon? Answer: 48 minutes. Source: Wikipedia: Apollo 11
  • Images of the first Moon walk were broadcast to at least how many people on Earth? Answer: 600 million. Source: Wikipedia: Apollo 11
  • In which ocean did Apollo 11 splash down on July 24? Answer: The Pacific Ocean. Source: Wikipedia: Apollo 11
  • In which year did an act of Congress award the three astronauts a Congressional Gold Medal? Answer: 2009. Source: Wikipedia: Apollo 11
  • Which device left on the surface is used for the lunar laser ranging experiment? Answer: A retroreflector array. Source: Wikipedia: Apollo 11
  • Which mineral found in the Apollo 11 samples was named after the three astronauts? Answer: Armalcolite. Source: Wikipedia: Apollo 11
  • Which Soviet robotic mission was in orbit around the Moon at the same time as Apollo 11? Answer: Luna 15. Source: Wikipedia: Apollo 11
  • Who designed the Apollo 11 mission emblem? Answer: Michael Collins. Source: Wikipedia: Apollo 11
  • With which president did the astronauts speak while they were on the surface? Answer: Richard Nixon. Source: Wikipedia: Apollo 11
How this list was compiled

Written for this site; nothing was copied from another list. Questions and wrong choices are our own. Each explanation restates, in our own sentences, a fact from the English Wikipedia article named and linked beside the question (https://en.wikipedia.org, text under the Creative Commons Attribution-ShareAlike 4.0 license): Moon and Apollo 11. The text of each article was fetched on October 2, 2026, and on October 3, 2026 the passage that states each fact was read in it before the question was kept. Left out on purpose: missions still to come and anything dated after 2024 (plans change), the old link the article reports between the Moon and madness, the launch pad fire of 1967, and what the site's space flight questions already ask about the Moon program. No living person is an answer or a choice. Levels are our estimate: easy is fair for any table, medium suits people who know the subject, hard will stump most tables. Each question also carries the date its article was read (checkedOn). Licence: own work