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For other uses, see Venus.

Venus (or Sol II) was a planet located in Federation space of the galaxy's Alpha Quadrant, the second planet in orbit of the Sol star system in sector 001, at coordinates 2.09S 5.26W. Due to the presence of large amounts of carbon dioxide in the atmosphere, the surface temperature was over 700° K, with an extremely high atmospheric pressure. (FASA RPG module: The Federation; ST reference: Star Charts)


Its dense air was poisonous to human life. (TOS - Star Trek 3 novelization: The Doomsday Machine)

The oppressive heat resulted from a runaway greenhouse effect. (VOY novel: Ragnarok)

Its atmosphere was similar to Earth billions of years ago. The Tholian homeworld similarly had a superheated, caustic atmosphere. (TOS novel: First Frontier; TLE novel: The Sundered)

Venus was about the size of Sherman's Planet. It had some similarities to to Janus VI, Valtor III, and the inhabited Rejarris II. (SCE eBook: Oaths; Last Unicorn RPG module: Star Trek: The Original Series Core Game Book, FASA RPG module: A Matter of Priorities, TLE novel: One Constant Star)

Venus rotated clockwise on its axis, similar to Ephrata IV. (TOS novel: The Weight of Worlds)

It orbited 0.7 AUs from Sol and had a silicate/iron surface. (Decipher RPG module: Worlds, ST reference: Worlds of the Federation)

It lacked plate tectonics, resulting in seismic stress being relieved every 500 million years in a global-wide release of magma. (SCE eBook: Ishtar Rising)


20th century

Earth's early exploration of space included sending probes to explore Venus. (TOS novel: Mission to Horatius)

Launched in August 1962, Mariner 2 transmitted data from Venus to Earth. (The Classic UK Comics, Volume 3)

Mariner 5 also went to Venus. (TOS reference: Inside Star Trek: The Real Story)

In 1978, the Pioneer Venus Probe launched a series of smaller probes into the atmosphere. In the 1980s, the Venus atmospheric balloon studied the world's stratosphere. (ST reference: Spaceflight Chronology)

21st century

One of Earth's early L-5 Colonies installed propulsion units and sent itself into a ten-year long cometary orbit that ranged from Venus to Uranus. Known as Wanderer, it disappeared after its third trip past Venus. (TOS novel: The Galactic Whirlpool)

The UNSS Tiller conducted early terraforming efforts. The vessel seeded Venusian clouds with an algae to convert carbon dioxide into oxygen. It also bombarded the surface with ice asteroids to increase the planet's speed of rotation and increase water vapor pressure in the atmosphere. Eventually their efforts cooled the surface and produced rain that eventually yielded water oceans. A number of seafarms were installed along the equatorial region to reduce the high acid content of the water and grow vegetation.

On reference stardate 0/47, humans first set foot on Venus and founded the Venus North Pole Base. (ST reference: Spaceflight Chronology)

23rd century

In the 23rd century, despite the harsh climate, Venus was home to a Human agricultural colony and the Federation Sol II shipyard. By reference stardate 2/2306.01, the world had a population of 2.57 billion individuals, mostly Human, and the government was a full-status colonial member of the Federation. (FASA RPG module: The Federation)

In the 2220s and 2230s, the isolationist Terra-Return League argued that Venus, Mars, and some Sol system moons offered sufficient habitable space for all of humanity. (FASA RPG module: The Four Years War)

In the mid 23rd century, Chinatsu Rin grew up in one of the armored, pressurized domes on Venus. (TOS novel: Academy: Collision Course)

Venus highdomes existed by the 2260s. (TOS novel: Prime Directive)

In the 2260s, a research depot at Venus designed the metal mob, robots built to conduct exterior maintenance on Federation starships. Nearly two dozen prototypes were tested aboard the USS Enterprise. (TOS comic: "Thorpex")

24th century

By the 24th century, efforts were underway to fully terraform the planet. Several terraforming stations were established on the surface. Earlier attempts had been problematic. (DS9 episode: "Past Tense", SCE eBook: Ishtar Rising)

As a child, Benjamin Sisko spent some time in New New Orleans on Venus in the 2330s or 2340s. He was once chased by a Venusian Firebeast. (DS9 - Millennium novel: Inferno)

In 2358 during his Kobayashi Maru scenario, Mackenzie Calhoun ignited the fuel carrier, and its blast destroyed two Romulan starships. He quipped to Jean-Luc Picard that he blew up the ship because it obstructed his view of Venus. (NF novel: Stone and Anvil)

By the 2360s, Starfleet Academy's Venus Flight Range station in low orbit provided atmospheric pilot training for cadets. Chakotay spent a couple of months there during his sophomore cadet year. Domenica Corsi also took flight training there. (Last Unicorn RPG - Starfleet Academy module: Starfleet Academy Handbook, VOY episode: "Future's End", SCE eBook: Ishtar Rising)

On 2 September 2363, Morgan Primus considered committing suicide with her daughter by flying her shuttle into the sun. As the ship approached the dark side of Venus, she heard her daughter Robin Lefler waking up. Primus eventually diverted and crashed the ship in the Atlantic Ocean. (NF - No Limits short story: "Alice, on the Edge of Night")

Starfleet seeded Venus with a type of bacteria that could convert carbon dioxide into fluorocarbons. (Decipher RPG module: Worlds)

By the 2380s, surface pressure and temperature had been reduced, as well as the overall level of atmospheric carbon dioxide. Starfleet Academy had a domed Venusian Campus training facility on the surface. (Last Unicorn RPG - Starfleet Academy module: A Cadet's Guide to Sector 001 Earth)

Scientists projected that the surface would become as habitable as Mars within a century. (Last Unicorn RPG module: Planets of the UFP)

Alternate timelines

In 2370 of the First Splinter timeline, Doctor Pascal Saadya joined Project Ishtar, a terraforming effort that networked 14 ground stations to millions of small atmospheric probes, a satellite network, and the orbiting Ishtar Station. By the 2370s, the planet's rotation had been increased to 117 solar days.

In August 2376, the USS da Vinci assisted in the terraforming project. The efforts of Project Ishtar triggered the planet's cyclic magma expulsions. Soloman adjusted force fields such that lava was concentrated at a single, large volcano rather than covering the planet. Ejected mantle fragments formed a temporary ring system expected to congeal into a new moon, which Saadya named Venus Felix. (SCE eBook: Ishtar Rising)

In fiction

In the stories of Captain Proton, Venus was inhabited by green-skinned people. Surface features included boiling-hot oceans and steaming jungles. (VOY - Captain Proton: Defender of the Earth short story: "The Planets of the Future")

Notable residents


Points of interest


Settlements and outposts

Orbiting facilities



Sol system
orbital landmarks (planets, planetoids, moons & asteroids) Sol (primary) • I. Mercury • II. Venus • III. Earth (Luna) • IV. Mars (PhobosDeimos) • Sol asteroid belt (CeresVesta) • V. Jupiter (CallistoEuropaGanymedeIoAmalthea) • VI. Saturn (EnceladusMimasPhoebeRheaTethysTitan) • VII. Uranus (Ariel) • VIII. Neptune (NereidTriton) • Pluto (CharonNixHydra Elysium) • Oort cloud (ErisDysnomiaProsperine) • Kuiper Belt {{{2}}} icon image.{{{2}}} icon image.
space stations Khepera Chromospheric Solar ObservatoryAphrodite Terraforming StationIshtar StationSol II shipyard (Venus)Spacedock 1San Francisco Fleet Yards (Construction support station 173orbital office complex) • McKinley StationUtopia Planitia Fleet YardsJupiter StationSol V shipyard (Europa)Saturn drydockSaturn Station 1Sol VI shipyard (Titan)Pluto StationStarbase 1Defense Outpost 1426Defense Outpost 1427Defense Outpost 1428
outposts Venusian CampusPhobos CampusJupiter Colony VJupiter Outposts (Jupiter Outpost 92Ganymede Station) • Mimas StationTitan OutpostProject Pluto Research StationStarfleet Archives AnnexEridian Vault
Kelvin timeline Starbase 1 (Kelvin timeline)Io FacilityStarbase Zeta {{{2}}} icon image.{{{2}}} icon image.
Mirror Universe Terran Space Defense FortressTerran ControlJupiter StationNeptune Station {{{2}}} icon image.


External links