The Mote in God's Eye is a science fiction novel by American writers Larry Niven and Jerry Pournelle, first published in 1974. The story is set in the distant future of Pournelle's CoDominium universe, and charts the first contact between humanity and an alien species. The title of the novel is a reference to the Biblical "The Mote and the Beam" parable and is the nickname of a star. The Mote in God's Eye was nominated for the Hugo, Nebula and Locus Awards in 1975.

Setting

The Mote in God's Eye (originally titled Motelight) is set in Pournelle's CoDominium universe, where a union of the United States and the Soviet Union produced a world government and a number of colonies in other star systems, followed by nuclear war on Earth and the rise of the First Empire based on the planet Sparta several centuries before the events of the novel. There is a reference to these events in Pournelle's novel King David's Spaceship.

Many, but not all, humans are part of the Second Empire, held together by an interstellar navy modeled on 19th century British lines, with all-male crews, a highly competent officer corps grown from midshipmen recruited in their teens and trained on the job, and well-armed, well-organized Marines to carry out ground missions. Those who prove themselves worthy can be promoted into the aristocracy. The aristocrats themselves tend more towards duty than privilege. The Empire is predominantly Christian, but other religions are more or less tolerated. The people of the planet Dayan are Jewish, while Horace Bury is a Muslim business magnate from Levant. An upstart religion, the "Church of Him", which was founded when the Mote became intensely bright and was regarded as part of the Face of God, is shown in decline, its founder having committed suicide when the light from the Mote went out.

The Second Empire sees its mission as uniting humanity into one government to prevent war. But in service of this mission, the empire is capable of extreme brutality; it has sterilized a planet to prevent rebellion.

Plot summary In the year 3017, humanity is slowly recovering from an interstellar civil war that tore apart the first Empire of Man. The Second Empire is busy establishing control over the remnants left by its predecessor, by force if necessary. The Alderson Drive enables ships to travel instantaneously between "Alderson points" in specific star systems.

After a rebellion on the planet New Chicago is quashed, Captain Bruno Cziller of the Imperial battlecruiser INSS MacArthur remains behind as Chief of Staff to the new governor, while Commander Roderick Blaine is given temporary command of the ship, along with secret orders to take Horace Hussein Bury, a powerful interstellar merchant suspected of instigating the revolt, to the Imperial capital, Sparta. Another passenger is Lady Sandra "Sally" Bright Fowler, the niece of an Imperial senator and a traumatized former prisoner of the rebels.

New Caledonia is the capital of the Trans-Coalsack sector, on the opposite side of the Coalsack Nebula from Earth. Also in the sector is a red supergiant star known as Murcheson's Eye. Associated with it is a yellow Sun-like star, which from New Caledonia appears in front of the Eye. Since some see the Eye and the Coalsack as the face of God, the yellow star is known as the Mote in God's Eye.

Approaching New Caledonia, MacArthur is ordered to investigate when an alien spacecraft, propelled by a solar sail, is detected. After the spacecraft fires upon MacArthur, Blaine has its main capsule detached from the sail and taken aboard at great risk to his ship and crew. Its sole occupant, a brown and white furred creature, is found dead.

After much debate, MacArthur and the battleship Lenin are sent to the star from which the alien ship came, the Mote. MacArthur carries civilian researchers to make first contact with the aliens, quickly nicknamed "Moties". Admiral Kutuzov, aboard Lenin, has strict orders to avoid all contact with the aliens and ensure that human technology does not fall into their hands. The Moties seem friendly and have advanced technology that they are willing to trade, much to Bury's delight. Although they also possess the Alderson Drive, none of their spacecraft using it have ever returned. This is because, unknown to the Moties, the Mote's only Alderson exit point lies within the outer layers of the star Murcheson's Eye. Human warships can survive there for a limited time because of their protective Langston Fields, which the Moties do not have.

The Moties are an old species, native to a planet that the humans label Mote Prime, that has evolved into many specialized subspecies. The first taken aboard MacArthur is an "Engineer", possessing amazing technical abilities, but limited speech and free will. It brings along a pair of tiny "Watchmakers" as helpers. Some days later, a delegation of "Mediators" (like the dead pilot of the probe ship) arrive. Their specialty is communication and negotiation. The Mediators invite the humans to send a party to Mote Prime. After some debate, the invitation is accepted. Each person in this group acquires a "Fyunch(click)", a Mediator who studies their human subject and tries to learn how to think like them.

Back on MacArthur, the Watchmakers escape, and although it is assumed they have died, they have actually been breeding furiously out of sight. Undetected by the crew, they modify parts of MacArthur to suit their needs. When they are discovered, a battle for control of the ship erupts. The crew is eventually forced to abandon ship after suffering casualties. The party on Mote Prime is quickly recalled without explanation and told to rendezvous with Lenin. Once MacArthur is evacuated, Lenin fires on and destroys her to prevent the potential capture of human technology.

During the evacuation, MacArthur midshipmen Staley, Whitbread and Potter are cut off and forced to escape in Watchmaker-modified lifeboats. The lifeboats automatically land in a sparsely populated area of Mote Prime. There the midshipmen find a fortified museum. It provides evidence of a very long and violent history, though the Moties had carefully portrayed themselves as completely peaceful. Following this discovery, the midshipmen are tracked down by Whitbread's Mediator Fyunch(click), who reveals that Moties (other than the short-lived, sterile Mediators) must become pregnant periodically or die. This inevitably results in overpopulation ... and civilization-ending wars. The Masters, whom the Mediators obey, have also concealed the existence of one Motie subspecies from the humans: Warriors more deadly than any human, even Sauron supersoldiers.

The museums exist to help restore civilization after a collapse. The "Cycles" of civilization, war, and collapse have gone on for hundreds of thousands of years, leaving the Moties fatalistically resigned to their destiny. Only a mythical character called "Crazy Eddie" believes there is a way to change this, and any Motie who comes to believe a solution is possible is labeled a "Crazy Eddie" and deemed insane.

The current civilization is a type of industrial feudalism, with coalitions of Masters in control of the planet. One faction, led by "King Peter", wanted to reveal the truth to the humans, but was overruled. Colonization of other planets would inexorably bring about conflict with humans, as the inevitable Motie population explosion would force them to seek to take over human worlds. Nonetheless, the more powerful coalition sees this temporary solution as preferable to the impending collapse. Both factions send Warriors after the midshipmen, one to capture them, the other to rescue them. The stronger group's Warriors trap the midshipmen, but the trio refuse to surrender and die as a result.

Unaware of the midshipmen's fate, Lenin leaves the Mote system, taking with it three ambassadors, a sterile Master and two Mediators, whose mission is to open the galaxy to their species while concealing their terrible secrets.

An Imperial Commission is on the verge of granting colonies to the Moties, but MacArthur Sailing Master/Lieutenant Kevin Renner figures out the truth just in time. It is the passengers on the original probe, deliberately ejected into space, that give the game away. Not only is there a Warrior among the group, but several are visibly pregnant, demolishing any argument about them being statues or religious icons.

The decision is made to gather a battle fleet to either disarm or try to annihilate the Moties. The ambassadors are faced with the extinction of their species, knowing that the Masters would never submit. However, a Mediator comes up with a third option: a blockade of the system's only Alderson exit point. This plan is adopted, over the strenuous opposition of Bury, who views the Moties as the greatest threat humanity has ever faced.

Characters Commander Roderick "Rod" Blaine A navy officer and member of an influential aristocratic family, Blaine is promoted to captain of the Imperial battlecruiser INSS MacArthur. On return to New Scotland from the Mote, he is retired from active service and appointed to the Commission charged with negotiating with the Moties. Lady Sandra "Sally" Bright Fowler After leaving the Imperial University at Sparta with a master's degree in anthropology, she and a classmate named Dorothy embarked on a trip to study primitive cultures (such as human colonies isolated by the civil war) first hand. They became caught up in the revolution on New Chicago. Dorothy disappeared and Sally was imprisoned in a concentration camp, where she took on a leadership role. Months later, she and her two retainers were rescued by Imperial forces. The niece of an Imperial senator, she is sent home aboard MacArthur, but talks herself onto the expedition to the Mote based on her skills. His Excellency Horace Hussein Chamoun al Shamlan Bury An Imperial magnate, Chairman of the Board of Imperial Autonetics, and a leading member of the Imperial Traders Association, Bury instigates the rebellion on New Chicago. The Navy suspects his involvement, so he is made a virtual, though unofficial, prisoner aboard MacArthur, with the intent of sending him to New Sparta to face the judgement of the Imperial Court. Although rich, he is not in a position to bribe Blaine, whose family is even richer. His experiences during the evacuation of MacArthur turn him into an advocate for isolating or even destroying the Moties. Nabil Bury's servant, skilled with dagger and poison. Travels with Bury to New Scotland, the Mote, and eventually to Sparta. At Bury's command, he captures two "Watchmaker" Moties and places them in a spacesuit's air tank in suspended animation. Later Bury throws the tank away, having become intensely fearful of Moties. Commander Jack Cargill First lieutenant of MacArthur, promoted to executive officer after the battle of New Chicago. Commander Jock (Sandy) Sinclair MacArthurs chief engineer. Born in New Scotland. Jonathon Whitbread A MacArthur midshipman, he becomes the first man to make contact with a living Motie. He has an easygoing personality in contrast to his shipmate Horst Staley. Whitbread is described as being "17 standard years old", slightly younger than the more senior Staley. Horst Staley A MacArthur midshipman. Born on the former rebel planet Sauron, he adheres rigidly to naval regulations and the chain of command, and displays no sense of humor. Like the other midshipman, Staley is still in his teens. Despite this, he is put in command of a boarding party of marines ordered to rescue trapped passengers and retrieve Motie technology during the evacuation of MacArthur.