What significant achievement of Adams involves a planet's ring?
Discovery of Jupiter's ring
Discovery of Saturn's ring
Naming of Neptune's outermost known ring
Naming of Uranus's ring
Answer
Neptune's remote and faint outermost ring, now called the Adams ring, was discovered in 1984 by a young astronomer named Heidi Hammel, who named it after John Couch Adams, the British mathematician who had predicted the existence of Neptune based on irregularities in Uranus' orbit.
The Astronomical Achievements of John Couch Adams: A Quiz on the British Mathematician and Astronomer