1) Who are credited with the discovery of Neptune?
a) Adams and Le Verrier
b) Hubble and Slipher
c) Lowell and Kelvin
d) Newton and Kepler
2) Galileo had observed Neptune. What did he think of it?
a) Satellite
b) Meteor
c) Asteroid
d) Star
3) Which is the outermost ring of Neptune?
a) Adams
b) Galatea
c) Leverrier
d) Galle