Hard Cosmic Knowledge Quiz

Challenge yourself with ten tough astronomy questions covering stars, planets, and the far reaches of the universe.

exoplanetscosmologyblack holesgalaxiesastronomyspace telescopesorbital dynamicsstellar physics
Difficulty:HARD

Quiz Details

Questions10
CategoryScience & Nature
DifficultyHARD
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Quiz Questions

Answer all questions below and test your knowledge.

  1. 1

    The Cosmic Microwave Background has a temperature of approximately?

    Question 1
  2. 2

    What phenomenon causes the apparent shift in position of a star due to Earth's motion around the Sun?

    Question 2
  3. 3

    What is the primary process that powers main-sequence stars like the Sun?

    Question 3
  4. 4

    Which type of supernova results from the thermonuclear explosion of a white dwarf that has approached the Chandrasekhar limit?

    Question 4
  5. 5

    The Lagrange point L4 in the Earth–Moon system leads the Moon in its orbit by what angle?

    Question 5
  6. 6

    What is the most abundant molecule in the interstellar medium after molecular hydrogen?

    Question 6
  7. 7

    Which telescope first captured the first direct image of a black hole's event horizon?

    Question 7
  8. 8

    In orbital mechanics, the vis-viva equation relates orbital speed to which two quantities?

    Question 8
  9. 9

    What spectral class does the Sun belong to?

    Question 9
  10. 10

    Which planet has the shortest orbital period around the Sun?

    Question 10

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