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Pioneers of Astronomy

They measured the Earth with shadows, moved the Sun to the centre and spotted new worlds. Step into the observatory and prove you belong among them.

🪐 Space hard 20 questions ~8 min
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What this quiz asks

  • Who used a telescope like this to discover four moons circling Jupiter in 1610?
  • Whose book, published in 1543, placed the Sun rather than the Earth at the centre of the planets' motions?
  • Ptolemy's Almagest, the standard astronomy textbook for well over a thousand years, put what at the centre of the universe?
  • Tycho Brahe lost part of his nose in a duel and wore a metal replacement for the rest of his life.
  • According to Kepler's first law, what shape are the orbits of the planets around the Sun?
  • In 1781 William Herschel spotted which planet from the garden of his house in Bath?
  • Copernicus's Sun-centred model still had the planets moving in circles.
  • Which ancient Greek astronomer proposed a Sun-centred cosmos some 1,800 years before Copernicus?
  • Did Galileo spend his last years under house arrest after his trial by the Roman Inquisition?
  • Around 240 BC, Eratosthenes compared the Sun's shadows in two Egyptian cities to measure what?
  • William Herschel's sister Caroline became a noted astronomer in her own right. What did she discover several of?
  • Select ALL of these that Galileo observed with his telescopes.
  • Order these astronomers by when they were born, earliest first.
  • In 1923 Edwin Hubble found a Cepheid star in the Andromeda 'nebula'. What did this show?
  • Henrietta Swan Leavitt was one of the 'Harvard Computers', a group of women employed to do what?
  • Select ALL of these astronomers who did all their work before the telescope was invented.
  • In what year was Neptune first seen through a telescope, after its position had been predicted by mathematics?
  • Why did Charles Messier compile his famous 18th-century catalogue of fuzzy objects such as nebulae and star clusters?
  • Galileo saw strange 'ears' on either side of Saturn. Who first explained them correctly, as a ring around the planet?
  • Which 15th-century ruler built a great observatory in Samarkand and compiled a famous star catalogue there?