Trivia Cafe

37 Space Trivia Questions and Answers

Space trivia about the planets and moons of the solar system, the stars and constellations, and the people and machines that have left the Earth. The questions range from primary-school easy to ones that need some astronomy. Answers are printed with each question.

There are 37 questions on this page. They are free to use for quiz nights, classrooms and pub quizzes, and each one links to its own page.

Related lists: Chemistry trivia questions, Human Body trivia questions, Mythology trivia questions, Ocean trivia questions.

  1. 1.In April and May, 1961, the first two astronauts were launched into space; one Russian and one American. Can you name them?

    Answer: YURI GAGARIN / ALAN SHEPARD, JR.

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  2. 2.They are characters from Shakespearean plays The Tempest and A Midsummer Night's Dream : Ariel, Miranda, and Phoebe, but scientists have used their names for another purpose. What is it?

    Answer: MOONS OF URANUS AND SATURN

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  3. 3.How many planets in our solar system have no moon?

    Answer: 2 - MERCURY / VENUS

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  4. 4.If the astronauts took with them the moon a grandfather clock, for what scientific reason would it not keep proper earth time?

    Answer: IT REQUIRES EARTH'S GRAVITY FOR THE PENDULUM TO KEEP PROPER EARTH TIME

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  5. 5.Planets: a. Which planet in our solar system has the shortest day - making one rotation about its axis every 10 hours or so? Is it Mercury, Jupiter, or Pluto? b. How many planets have no moons? c. Which planet has the tallest mountain - Earth, Mars, or Uranus?

    Answer: a. JUPITER b. 2 - Mercury and Venus c. MARS

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  6. 6.What is the name of the figure formed by the seven brightest stars in the constellation Ursa Minor, one of which is Polaris, the North Star?

    Answer: LITTLE DIPPER

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  7. 7.June 29, 1995 - The U.S. space shuttle Atlantis successfully docked with the Russian space station called what?

    Answer: MIR

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  8. 8.In the film Apollo 13, Tom Hanks played the role of which astronaut?

    Answer: JIM LOVELL

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  9. 9.In March, 1998, NASA announced that an unmanned lunar spacecraft had discovered up to 6 billion tons of ... what? ... on the moon?

    Answer: ICE

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  10. 10.Where is the Sea of Tranquility located?

    Answer: ON THE MOON

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  11. 11.Shaped like a flat disk, it's about 100,000 light years in diameter, and about 10,000 light years thick. What is it?

    Answer: MILKY WAY

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  12. 12.Asteroids are small irregularly shaped bodies, sometimes called minor planets, which orbit the sun, and are most frequently found between which two planets?

    Answer: MARS AND JUPITER

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  13. 13.The length of one earth day is approximately 24 hours (actually 23'56). Which planet in our solar system has the longest day, equivalent to about 243 earth days?

    Answer: VENUS

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  14. 14.What space shuttle exploded on take off, on January 28, 1986, and which two female astronauts died on board?

    Answer: CHALLENGER / CHRISTA McAULIFFE / JUDITH RESNICK

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  15. 15.Which planet was named after the Roman god of war?

    Answer: MARS because of its red color

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  16. 16.In the late 1970s, the Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?

    Answer: MARS

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  17. 17.Which constellation in the southern sky has the same name as an organization containing many intelligent people?

    Answer: MENSA

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  18. 18.What name is given to the darkest part of a shadow cast by the earth or moon during an eclipse?

    Answer: UMBRA

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  19. 19.How many moons does Mars have?

    Answer: Two

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  20. 20.What celestial event occurs when the Moon passes directly between the Earth and the Sun?

    Answer: Solar eclipse

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  21. 21.What type of galaxy is the Milky Way classified as?

    Answer: Barred spiral galaxy

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  22. 22.What are the dark, flat areas on the Moon's surface called, formed by ancient volcanic eruptions?

    Answer: Maria (lunar seas)

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  23. 23.Which planet is known as the Red Planet?

    Answer: Mars

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  24. 24.What is the largest planet in our solar system?

    Answer: Jupiter

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  25. 25.In 1962, European countries joined forces to establish an international astronomical project. They set up a space observatory, with some of the most powerful telescopes in the world, at La Silla, in which southern country?

    Answer: CHILE

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  26. 26.How many high tides do seashores have in a week?

    Answer: 14 / two per day caused by the gravitational attraction of the Moon and Sun and the opposite force of centrifugal motion.

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  27. 27.What is the largest moon of Saturn?

    Answer: Titan

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  28. 28.Which planet is the hottest in the Solar System?

    Answer: Venus

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  29. 29.Which Apollo mission first landed humans on the Moon, in July 1969?

    Answer: Apollo 11

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  30. 30.Which Apollo 11 astronaut remained in lunar orbit aboard the command module Columbia while Armstrong and Aldrin landed?

    Answer: Michael Collins

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  31. 31.What was the name of the Apollo 11 lunar module?

    Answer: Eagle

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  32. 32.In what year was the Hubble Space Telescope launched?

    Answer: 1990

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  33. 33.In what year did the International Astronomical Union redefine "planet" in a way that excluded Pluto?

    Answer: 2006

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  34. 34.Which astronomer discovered Pluto in 1930?

    Answer: Clyde Tombaugh

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  35. 35.On which planet is the Great Red Spot, a giant storm?

    Answer: Jupiter

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  36. 36.Which planet was first observed by William Herschel in 1781?

    Answer: Uranus

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  37. 37.Which comet appears in Earth's sky roughly every 74 to 79 years?

    Answer: Halley's Comet

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