Which gaseous giants did Renaissance scientists such as Galileo know about?

a. Jupiterb) Marsc) Neptuned) Saturne) Uranus?

The answer is A. Galileo discovered Jupiter in 1610 using a telescope which he also discovered had 4 moons. Its discovery was significant in augmenting the then proposition that earth was not the center of the universe as earlier believed. He also viewed the bands and spots on the gaseous planet with his telescope.

The correct answer is:

a. Jupiter

Explanation:

In 1610, Galileo Galilei turned his rudimentary telescope on Jupiter and understood that it had 4 large moons orbiting it: Io, Europa, Ganymede, and Callisto. This was an amazing discovery because it explained that Earth was not the center of the Universe as champions of the geocentric view assumed.