As a writer, Fontana is credited with many episodes focusing on Vulcan culture and helped blaze a trail for female writers in sci-fi television. She is the mind behind The Original Series and The Animated Series episodes like “Yesteryear” and “Journey to Babel,” which introduced Spock’s father Sarek and mother Amanda. She co-wrote the Hugo Award nominated The Next Generation episode “Encounter at Farpoint” with Gene Rodenberry, and she continued to write for TNG and Deep Space Nine.