Text 3 (Number 19-22)On November9th, 1934, Carl Sagan, one of the most renowned astronomers and science communicators of the20thcentury, was born in Brooklyn, New York. Sagan's curiosity about the stars began at an early age. He attended the University of Chicago, where he earned his bachelor's, master's, and doctorate degrees in astronomy and astrophysics. During his time at the university, he conducted significant research and published numerous papers on the atmosphere of Venus, Mars, and Jupiter.In the 1960s, Sagan joined the Harvard University faculty and worked at the Smithsonian Astrophysical Observatory. He contributed to the Mariner, Viking, Voyager, and Galileo missions, significantly advancing our understanding of the solar system. Sagan's work was instrumental in the discovery of the high surface temperatures of Venus and the seasonal changes on Mars. He also played a crucial role in identifying the potential habitability of the moons of Jupiter and Saturn.Despite his scientific achievements, Sagan is perhaps best known for his ability to communicate complex scientific concepts to the general public. In 1980, he co-wrote and hosted the groundbreaking television series "Cosmos: A Personal Voyage." The series, which was watched by millions of people around the world, covered a wide range of scientific topics, from the origins of life on Earth to the possibility of extraterrestrial civilizations. "Cosmos" has been credited with inspiring a new generation of scientists and fostering a greater appreciation for the universe.Sagan was also an advocate for the search for extraterrestrial intelligence (SETI). He believed that humanity had a responsibility to explore the cosmos and seek out other intelligent life forms. His book "Contact," later adapted into a film, explores these themes and remains a seminal work in the field of science fiction.In addition to his work in astronomy, Sagan was a vocal advocate for science education and skepticism. He authored numerous books aimed at the general public, including "The Demon-Haunted World: Science as a Candle in the Dark," which emphasizes the importance of scientific thinking and the dangers of pseudoscience. Sagan's ability to convey the wonder of the universe and the importance of scientific inquiry made him a beloved figure in both the scientific community and popular culture.Carl Sagan passed away on December20th, 1996, but his legacy continues to influence and inspire. The Carl Sagan Institute at Cornell University, established in his honor, continues his work in planetary research and the search for life beyond Earth. Sagan's contributions to science and his efforts to communicate its wonders to the public have left an indelible mark on our understanding of the cosmos.It is most likely that …