Question

who rediscovered aristarchuss model of a heliocentric solar system?
copemicus
galileo
kepler
ptolemy

Explanation:

Aristarchus proposed a heliocentric model in ancient times. Copernicus, in the Renaissance, independently developed and popularized a heliocentric model, essentially rediscovering the concept. Galileo supported the heliocentric view through observations (e.g., of Jupiter's moons). Kepler formulated laws of planetary motion (based on a heliocentric framework). Ptolemy proposed a geocentric model. So, Copernicus is the one who rediscovered the heliocentric model idea (similar to Aristarchus's) in a more modern, detailed, and widely - known form.

Answer:

Copernicus