Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-astronomy-5c516630abfb

What did Galileo observe that supported the Sun-centered model?

Phases of Venus.

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  1. Rings of Saturn
  2. Moons of Mars
  3. Phases of Venus ✔

Why: Galileo observed phases of Venus similar to the Moon's, which supported the heliocentric model of the Solar System.

Huh, didn't know that: Galileo observed phases of Venus similar to the Moon's, which supported the heliocentric model of the Solar System.

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Galileo had a phase-tastic discovery!
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References

Answer: Phases of Venus. Galileo observed phases of Venus similar to the Moon's, which supported the heliocentric model of the Solar System.

  1. Astronomy en.wikipedia.org/wiki/Astronomy
    Galileo Galilei observed phases on the planet Venus similar to those of the Moon, supporting the heliocentric model
    Checked 2026-11-07.

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