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A. May 1655
B. April 1655
C. March 1655
D. February 27, 1655

Submitted by: Rashid Mehmood

Dutch astronomer Christiaan Huygens discovered Saturn’s largest moon, Titan, on March 25, 1655. It was nearly 300 years later, in 1944, when Dutch-American astronomer Gerard Kuiper discovered one of the characteristics that makes Titan exceptional: this distant moon actually has an atmosphere.

Correct Answer: March 1655

Last Updated: July 13, 2021