Question

which two gaseous giants did renaissance scientists such as galileo know about? jupiter and saturn mars and neptune neptune and uranus uranus and saturn

Explanation:

• Jupiter was observed by Galileo in 1610. He discovered its four largest moons (Io, Europa, Ganymede, and Callisto).
• Saturn was also known to Renaissance astronomers. Galileo observed Saturn but due to the limitations of his telescope, he could not clearly see its rings. He described it as having "ears".
• Mars is a terrestrial planet, not a gaseous giant.
• Neptune was discovered in 1846, long after the Renaissance (14th - 17th centuries).
• Uranus was discovered in 1781, also after the Renaissance.

Answer:

Jupiter and Saturn