Question

Which contributions did Galileo make to the model of the solar system? Select two options.

a mathematical model for the orbits of the planets
scientifically accurate data on planetary orbits
data that showed that planets reflected sunlight similar to Earth’s moon
the idea that stars are other suns that do not move
observations of the moons of Jupiter rotating around the gas giant

Answer 1

- data that showed that planets reflected sunlight similar to Earth’s moon
- observations of the moons of Jupiter rotating around the gas giant

Galileo’s telescopic observations (phases of Venus, the Moon’s surface, and Jupiter’s moons) showed planets shine by reflected sunlight and that not everything orbits Earth, supporting the Copernican model.