“... the irregularities of the motion of Uranus...in order to find out whether they may be attributed to the action of an undiscovered planet beyond it.[John Couch Adams on how he began to discover Neptune.]”

“... the irregularities of the motion of Uranus...in order to find out whether they may be attributed to the action of an undiscovered planet beyond it.[John Couch Adams on how he began to discover Neptune.]”

“... the irregularities of the motion of Uranus...in order to find out whether they may be attributed to the action of an undiscovered planet beyond it.[John Couch Adams on how he began to discover Neptune.]”