Space Quiz

Journey through the cosmos with questions about planets and stars.

Further than the solar system: alongside the planets you will find Tiangong, the ISS’s first crew and the Eddington luminosity. One of the more demanding themes in the catalogue.

1000+ questions in this theme

20 of them, with the answers

The questions, with answers

1. What is the name of the Chinese space station launched in 2021?

   AnswerTiangong

2. What year did the ISS have its first resident crew?

   Answer2000

3. How long does it take for moonlight to reach the Earth?

   AnswerLess than 3 seconds

4. What is the name of the equation that describes the maximum luminosity a celestial object can achieve before radiation pressure exceeds gravity?

   AnswerEddington luminosity

5. In what year was the first image of a black hole’s shadow captured?

   Answer2019

6. What is the name of the boundary between Earth’s upper atmosphere and outer space?

   AnswerKármán line

7. What is the name of the comet that impact Jupiter in 1994 breaking into pieces?

   AnswerComet Shoemaker-Levy 9

8. What is the average surface temperature on Venus?

   Answer465°C

9. Which constellation contains the North Star (Polaris)?

   AnswerUrsa Minor

10. What is the name of the phenomenon where the Moon appears red during a lunar eclipse?

    AnswerBlood Moon

11. What is the speed of light approximately?

    Answer300,000 km per second

12. What is the minimum mass a star needs to trigger hydrogen fusion in its core?

    Answer0.08 solar masses

13. What is the name of NASA’s program to return humans to the Moon in the 2020s?

    AnswerArtemis Program

14. What is the name of the mathematical description of the geometry of spacetime around a non-rotating black hole?

    AnswerSchwarzschild metric

15. What is the name of the most powerful rocket ever built that took astronauts to the Moon?

    AnswerSaturn V

16. What planet is Earth’s twin in terms of size?

    AnswerVenus

17. What is the name of the spacecraft that orbited Saturn from 2004 to 2017?

    AnswerCassini

18. What is the name of the mission that returned asteroid samples to Earth in 2023?

    AnswerOSIRIS-REx

19. What is the name of the boundary radius below which a cloud of gas would collapse under its own gravity?

    AnswerJeans radius

20. What is the name of the boundary around a black hole from which nothing can escape?

    AnswerEvent horizon