Their homeworld, Hearth, is a city-planet similar to Asimov's Trantor, albeit populated by tripodal aliens.

In Asimov's Empire and Foundation series, the capital planet Trantor of the galactic empire is a completely built-up planet, covered in its entirety with tall buildings and subterranean structures.

On Trantor, Stor Gendibal, a rising intellect in the Second Foundation hierarchy, discovers a secret he reveals to Quindor Shandess, the current First Speaker — that the Seldon Plan, which the Second Foundation diligently protects and furthers along, is being manipulated by some unknown group, one possibly more powerful than the Second Foundation, and whose reasons for so doing are not known.

But Trevize is troubled by one final piece of missing information: who or what has removed all reference to Earth from the Galactic Library at Trantor, and why.

* Cleon I is the Emperor of the Galactic Empire, who lives on Trantor.

The earlier history of Trantor is recapitulated in The Currents of Space, mentioning the five worlds of the Trantorian Republic growing into the Trantorian Confederation and then Trantorian Empire ( evidently modelled on the Roman Republic, originally ruling only part of central Italy, developing into the vast Roman Empire ).

At the time when Currents takes place, Trantor controls about half of the worlds in the Galaxy, while the other half is divided into innumerable independent worlds and miniature empires – which naturally makes a Trantorian Ambassador a person of great consequence on any of the still-independent worlds.

Trantor is depicted as the capital of the first Galactic Empire.

" It is noted that it was the Second Foundation which ensured that the famed library would survive the sacking of Trantor and the destruction of its urban culture – especially significant, considering that the library was vital to the Second Foundation itself.

In the Asimov canon, where events of this time are depicted mainly from a Foundation perspective, the Fall of Trantor is mentioned only as a piece of faraway news and in various later short references.

Foundation's Edge mentions algae growing on Trantor, which is called a totally inadequate source of food, so it is possible some of the later Emperors attempted to rectify the situation with limited success.

Asimov used the Roman Empire as the creative basis for the Foundation series, so Trantor is in some sense based on Rome at the height of the Roman Empire.

Coruscant is one of the more convincing images on screen we have today of Isaac Asimov's conception of the world-girdling city of Trantor.

Asimov's Trantor thus differs from Coruscant in that Trantor is more practically adapted to inclement weather, although weather control devices are used on both planets.

It should be noted that there is a planet called Trantor in the Star Wars universe, and it is also an ecumenopolis.

In the Runaway series of adventure games, Trantor is home planet of this universe's alien species.

The main job of the lower class is heatsinking, where workers supervise the conversion of heat from the planet's core directly into electric power by sinking extremely long rods into the inner core of the planet ( the three other major sources of electric power were hydroelectric dams on the underground rivers, fusion energy, and solar energy from Trantor's sun, both from rooftop solar arrays and from solar energy satellites orbiting Trantor that beamed microwave energy to the surface ); ' heatsinkers ' were generally looked down upon by other Dahlites.

* Mycogen — As Asimov explains in Prelude to Foundation, their name is formed from the Greek stems myco-( meaning ' yeast ' or other types of fungi ) and-gen ( meaning ' maker ' or ' producer '), which matches the description of the Mycogen as specialized in breeding and exporting yeast, or " microfood ," to other portions of Trantor.

* In the original Foundation Trilogy, there is no indication of Trantor being divided among wildly diverse cultures, likewise, the surface is described as covered with towers rather than domes ; its depiction in Prelude to Foundation and Forward the Foundation may be considered another example of retconning.

Throughout their adventures all over Trantor, Seldon continuously denies that psychohistory is a realistic science.

* Hame, the fictional planet in Isaac Asimov's Foundation series and Empire Series of science-fiction novels: see Trantor

* Dahl is a sector of the fictional planet Trantor

* In the Star Wars prequels, the galactic capital planet Coruscant has buildings many miles tall, and approaches the completely built-over condition of Trantor in Isaac Asimov's classic Foundation trilogy ( Note: due to this, Coruscant was originally to be named Jhantor but was eventually renamed Coruscant ).

Later on, conquest of the entire galaxy made the Galactic Empire, with Trantor as its capital planet, a reality ; the planet no longer sending out ambassadors, but only governors to royal subject worlds.

Eventually the farmers grew to become the sole recognised inhabitants of the planet, and the era of Trantor as the central world of the galaxy came to a close.

There have been some serious attempts to illustrate a planet like Trantor in the Star Wars films by George Lucas, the first being Coruscant ( which was in some early sources called " Jhantor ", in homage to Trantor ).

The planet Helior in Harry Harrison's Bill, the Galactic Hero satirises Trantor, highlighting the problems of atmosphere, waste disposal and navigating about a world-sized city.

The Warhammer 40k sources mention dead cities upon the quarantine planet of Proxima Trantor.

cs: Seznam planet série Nadace # Trantor

Prelude to Foundation opens on the planet Trantor, the empire's capital planet, the day after Hari Seldon has given a speech at a conference.

Their main common points are Asimov's idea of a future Galactic Empire, certain aspects of technology — hyperdrive, blaster pistols, " neuronic whips ," the possible invention of the " Visi-Sonor " — and particular locations, such as the planet Trantor.

The Second Foundation was founded by Hari Seldon as a budding colony of mentalics, people with telepathic abilities, located at " Star's End ", an intentionally obscure term used by Seldon, which is later revealed to refer to the planet Trantor.

Seldon asked Las Zenow, chief librarian of the Library of Trantor to undertake a search to find a suitable planet, according to Seldon's criteria.

The empire's capital, named Trantor, is the habitable planet closest to the center of the galaxy, and the novels in the Foundation trilogy describe its fall, over a period of centuries, and a period of anarchy and decay, a parallel to the fall of the ( Western ) Roman Empire and the Dark Ages.

Their talks on the former Kingdom of Trantor make Seldon consider the planet as a provisional model for the then still very immature psychohistory.

Gregory Benford's 1997 novel Foundation's Fear, set tens of thousands of years in the future, depicts a group of robots named tik-toks, who are responsible for supervising the automated farms on the planet Trantor.

* Trantor, the capital of an interstellar empire in Isaac Asimov's Foundation series, is a planet entirely covered in one huge metal clad building, with only one small green space: the Emperor's palace grounds.

Before the word ecumenopolis had been coined, the American religious leader Thomas Lake Harris ( 1823 – 1906 ) mentioned city-planets in his verses, and science fiction author Isaac Asimov uses the city-planet Trantor as the setting of some of his novels.

* The planet Trantor, capital of the Galactic Empire in Isaac Asimov's Foundation Series.

The city-planet was inspired by Trantor in Isaac Asimov's Foundation saga.

Delany makes an offhand reference to Isaac Asimov's Foundation trilogy ( a random planet is named " Trantor ").