Question

the renaissance astronomer who wrote the pioneering book that suggested the earth probably orbits the sun (instead of the other way around) was
options: ○ copernicus ○ halley ○ eratosthenes ○ ptolemy ○ newton

Explanation:

To solve this, we recall the contributions of each astronomer:

• Copernicus proposed the heliocentric model (Earth orbits the Sun).
• Halley is known for Halley's Comet.
• Eratosthenes calculated Earth's circumference.
• Ptolemy supported the geocentric model (Sun orbits Earth).
• Newton developed laws of motion and gravity.

Answer:

A. Copernicus