The crossword solutions for the term 'Astronomy Figure' are Sagan (5 letters) and STAR (4 letters). Carl Sagan was an American astronomer, astrophysicist, cosmologist, author, and science communicator. He is best known for his work as a science popularizer and communicator, and he was also a highly successful author, writing several best-selling books. STAR is a term used to describe a celestial body that emits light and other forms of radiation. Stars are the most widely recognized astronomical objects, and represent the most fundamental building blocks of galaxies.