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“io” in Planets
251 articles, top 60 shown
LocationHelios I
Helios I is a terrestrial rocky planet in the Helios system, United Empire of Earth (UEE). The closest planet to its sun, temperatures on Helios I are dangerously high. In 2937, the scientific survey station OB Tarasque…
LocationHelios III
Helios III is the third planet from the sun of the Helios system, United Empire of Earth (UEE). Massive and hydrogen-rich, it is the main source for hydrogen collection in Helios and is the hub for the system's gas…
LocationHyperion (Fora III)
Hyperion (Fora III) is the third planet from the sun of the Fora system, United Empire of Earth (UEE), and is the system's only populated world. In 2316, the Aether Worldbuilding Corporation started terraforming…
LocationOrion II
Orion II is the second planet from the sun of the Orion system. A smog planet, it has a high-pressure atmosphere composed of carbon dioxide and sulfuric acid, giving the planet a yellow-brown appearance. There have so…
LocationTangaroa (Helios II)
Tangaroa (Helios II) is a terrestrial planet located in the Helios system, United Empire of Earth (UEE). Highly geologically active, volcanic eruptions are frequent and unpredictable, often giving rise to short-lived…
LocationHelios IV
Helios IV is the outermost planet from the sun of the Helios system, United Empire of Earth (UEE). Although it is covered in thick sheets of ice and lacks a substantial atmosphere, the UEE military operates a network of…
LocationOrion I
Orion I is a protoplanet in the Vanduul-controlled Orion system. In 2709, the largest stellar flare yet recorded in the system erupted from its sun, melting the majority of Orion I's sun-facing surface. After the lava…
LocationOrion IV
Orion IV is a gas giant in the Orion system, nicknamed "Abyss" for its iconic deep black atmosphere. So little light reflects from Abyss that it is difficult to observe with the naked eye, save for a faint red glow that…
LocationArmitage (Orion III)
Armitage is the third planet from the sun in the Orion system. It was a terraformed and settled planet which became the site of first contact between Humans and the Vanduul in 2681, when a Vanduul raiding party razed…
LocationCrion (Caliban II)
Crion (Caliban II) is the second planet from the sun of the Caliban system in Vanduul territory. Located in the green band, it was terraformed by Humans shortly after it was discovered in SEY 2341 and turned into a…
LocationTerra (Terra III)
Terra is the third planet from the sun of the Terra system. Naturally habitable, it was colonized shortly after its discovery in SEY 2516 and has since become the most populous planet in the United Empire of Earth…
LocationmicroTech (Stanton IV)
MICROTECH microTech (Stanton IV) is the fourth and farthest planet from the sun in the Stanton system, United Empire of Earth (UEE). Located at the outer edge of the system's habitable zone, microTech is mostly ice,…
LocationCorin (Kilian IX)
CORIN (KILIAN IX) Corin (Kilian IX) is a mesoplanet in the Kilian system, United Empire of Earth (UEE), owned by the UEE Marines. Located far outside the system's green band, surface conditions on the planet are very…
LocationGenesis I
Genesis I is a mesoplanet in the developing Genesis system. Because it lacks a protective atmosphere, its surface is pockmarked with thousands of craters caused by meteorite bombardment, and its core is partially…
LocationOso II
Oso II is an inhabited terrestrial planet in the Oso system, best known as the home of the developing Osoian civilization. The second world from its sun, it sits in a temperate location in the green band and is covered…
LocationSelene (Vega III)
Selene is a terrestrial planet in the Vega system, United Empire of Earth (UEE) that was minimally terraformed to Human specifications. From 2550 to 2712, Selene was a center of industry, trade, tourism, and culture,…
LocationCharon III
Charon III (formerly Haros) is an inhabited planet in the Charon system, United Empire of Earth (UEE). During the Messer Era (SEY 2546 - 2792), the planet was used as a site for vast prisons and re-education camps.…
LocationLo (Corel III)
Lo (Corel III) is the largest populated planet in the Corel system, United Empire of Earth (UEE), and is represented by one Senator. As a major population center on the border between the UEE and the Banu Protectorate,…
LocationMin I
Min I is the rogue planet that forms the heart of the unclaimed Min system. Like other rogue planets, it may have been ejected from its original planetary system, or it may have formed without ever having been…
Monox (Pyro II)
Monox (Pyro II) is the second planet from the sun of the Pyro system. Nicknamed "Monox" for the deadly carbon monoxide in its atmosphere, it has a temperate climate, and was seen as a viable candidate for terraforming…
LocationMya (Leir II)
Mya is the second planet from the sun of the Leir system. Although it was discovered in 2677, it remained undeveloped until 2743, when Galor Messer IX sold the terraforming and mining rights of Leir II to Hatfield &…
LocationQuarterDeck (Kellog VI)
QuaterDeck (Kellog VI) is the sixth planet from the sun of the Fair Chance Act (FCA)-protected Kellog system. Named for the maximum security prison located on its surface, it is covered with ice and is inhospitable to…
Terminus (Pyro VI)
Terminus (Pyro VI) is the outermost world of the Pyro system. Its nitrogen-oxygen atmosphere is technically breathable, but contains high enough amounts of methane and carbon dioxide that it has a negative effect on…
LocationYethlūl y.ath'o (Yā'mon II)
Yethlūl y.ath'o (Yā'mon II) is the second planet from the sun of the Yā'mon system, Xi'an Empire. Although it saw little use other than resource extraction during the Xi'an-Human Cold War (SEY 2530 - 2793), it is now a…
LocationArcCorp (Stanton III)
ArcCorp is the third planet from the sun of the Stanton system, and is one of four planets in the United Empire of Earth (UEE) owned by a corporation. When the megacorporation ArcCorp purchased the world in 2865,…
LocationAremis (Vega II)
Aremis is a terrestrial planet in the Vega system, United Empire of Earth (UEE). It is famed for its set of rings, which are sharply defined by two shepherd moons that orbit the planet on the ring's inner and outer…
LocationGarron II
Garron II is the second planet from the sun of the Garron system, United Empire of Earth (UEE). Originally a lush, biodiverse world populated by countless animal and plant species and a burgeoning civilization, it was…
LocationKampos (Ellis IV)
Kampos (Ellis IV) is the first settled and most populous planet in the Ellis system, United Empire of Earth (UEE). Famous for a unique ecosystem adapted to high gravity, Kampos is a favorite subject for xenobiologists,…
LocationKeene (Kilian VII)
Keene is a terraformed terrestrial planet located seventh from the star of the Kilian system, United Empire of Earth (UEE). A civilian world, Keene is home to many offices and showrooms for spacecraft manufacturers,…
LocationKellog IV
Kellog IV is a super-Earth in the Fair Chance Act (FCA)-protected Kellog system, and is the fourth planet from its sun. Early surveys of the planet indicated that it possesses copious mineral resources, but its location…
LocationKo'li (Ē'aluth III)
Ko'li (Ē'aluth III) is the third planet from the sun of the Ē'aluth system, Xi'an Empire (SaoXy'an). Soon after it was discovered, the Xi'an government elected to terraform Ko'li and use it as a nature preserve for all…
Lūng'xyi (T.āl III)
Lūng'xyi (T.āl III) is the third planet from the sun of the T.āl system, Xi'an Empire (SaoXy'an). Dedicated to the production of food and textiles, its vibrant culinary and fashion scenes draw a steady stream of…
LocationNyx II
Nyx II is a smog planet with a poisonous, corrosive atmosphere of acid and carbon dioxide. Erosion from the atmosphere has made a dramatic mark upon the planet's surface. Though it is located in Nyx's green band, its…
LocationOretani II
Oretani II is the second planet from the sun of the lost Oretani system. An ocean world with small land masses, it was located on the system's green band, and had been chosen as a prime candidate for future settlement.…
LocationOso IV
Oso IV is a terrestrial planet in the Oso system, and is the fourth planet from its sun. Lacking a core, it has an undifferentiated interior that is rich in a wide variety of minerals. Soldiers from the nearby United…
LocationPersei (Rhetor II)
Persei is the second planet from the sun of the Rhetor system, United Empire of Earth (UEE). Soon after the system was discovered in 2287, surveyors identified vast deposits of rare elements in the crust. The United…
LocationPluto (Sol IX)
Pluto (Sol XI) is a dwarf planet and one of the farthest celestial bodies from the sun of the Sol system, United Empire of Earth (UEE). Not the most distant object, it is included as an honorary ninth planet in star…
LocationSaturn (Sol VI)
Saturn (Sol VI) is the sixth planet from the sun of the Sol system, United Empire of Earth (UEE). The second largest planet in the system, it is also the least dense, and has long been a subject of fascination to Humans…
LocationUriel (Oberon II)
Uriel is the second planet from the neutron star in the unclaimed Oberon system. Before the formation of the United Nations of Earth (UNE), there were few regulations on the discovery of new systems. When Titania…
LocationVosca (Elysium III)
Vosca is the third planet from the sun of the Elysium system, United Empire of Earth (UEE), and is home to a small population of Humans and Tevarin. Largely covered with an arid desert, water is scarce on the surface of…
Xi (R.il'a V)
Xi (R.il'a V) is the fifth planet from the sun of the R.il'a system, Xi'an Empire (SaoXy'an). Classified by the Xi'an government as a habitation world, it was extensively developed and meticulously organized in order to…
LocationYengchuai (La'uo II)
Yengchuai (La'uo II) is the second planet from the sun of the La'uo system, Xi'an Empire (SaoXy'an). Partially covered with an ocean of lava, Yengchuai's surface is profoundly geologically active, and is thought to have…
LocationYethlūl s.yen'o (Yā'mon III)
Yethlūl s.yen'o (Yā'mon III) is the third planet from the sun of the Yā'mon system, Xi'an Empire. Along with the nearby planet Yethlūl y.ath'o (Yā'mon II), it is being jointly terraformed by the Human corporation…
LocationAngeli (Croshaw II)
Angeli is the second planet in the Croshaw system, United Empire of Earth, and was the first planet settled by Humans outside the Sol system. Its position in the system's green band enabled a rapid colonization phase in…
LocationBanshee II
Banshee II is a terrestrial planet in the Banshee system, United Empire of Earth (UEE). The second planet out from the system's sun, much of the planet's surface has been worn away due to solar radiation, partially…
Bloom (Pyro III)
Bloom (Pyro III) is the third planet from the sun of the Pyro system. Cold but naturally habitable, it became the epicenter of mining endeavors in Pyro. Pyrotechnic Amalgamated and other corporations constructed…
LocationBorea (Magnus II)
Borea is the second planet from the sun in the Magnus system, United Empire of Earth (UEE). Terraforming began on the planet shortly after the system was discovered in 2499. Until 2631, it was the center of shipbuilding…
LocationBremen III
Bremen III is the third planet from the sun of the Bremen system, United Empire of Earth (UEE). A coreless planet, its undifferentiated interior was once rich in natural resources. Extensive mining activity since its…
LocationBremen IV
Bremen is the fourth planet from the sun of the Bremen system, United Empire of Earth (UEE). An ice giant, it is largely made up of hydrogen; however, violent weather conditions on the planet create inhospitable…
LocationCharon V
Charon V is a dwarf planet in the Charon system, United Empire of Earth (UEE). Numerous planetary surveys done since the system was discovered have confirmed that there are not enough precious mineral resources to…
LocationCorel II
Corel II is a coreless, terrestrial planet located in the Corel system, United Empire of Earth (UEE). The second planet from its sun, it has no magnetic field and an undifferentiated interior. UEE surveys of the planet…
LocationCorel VI
Corel VI is a protoplanet located in the outskirts of the Corel system, United Empire of Earth (UEE). In contrast to its sister planets, Corel VI's 12 degree orbital inclination puts it far off from the system's…
LocationEarth (Sol III)
Earth (Sol III) is the third planet from the sun of the Sol system, United Empire of Earth (UEE). The homeworld of Humans, it is the home of the Senate and the Imperator, the capital of the UEE, and the focal point of…
LocationErgo (Nemo III)
Ergo (Nemo III) is an inhabited ocean planet in the Nemo system, United Empire of Earth (UEE). Although today there is no indigenous life on the planet, the vast quantities of oil under its oceans suggests that at one…
LocationFerron IV
Ferron IV is a dense gas giant that is located farthest from the sun of the Ferron system, United Empire of Earth (UEE). Because it has an especially active electrical field, ships with sensitive avionics are advised…
LocationFora II
Fora II is a coreless terrestrial planet located in the Fora system, United Empire of Earth (UEE). After the terraformation of Hyperion (Fora III) failed, several companies attempted to terraform this planet, in spite…
LocationGarron III
Garron III is the third planet from the sun of the Garron system, United Empire of Earth (UEE). A super-Earth, it was initially left untouched in favor of its temperate neighbor, Garron II. After the events of the…
LocationGenesis II
Genesis II is a terrestrial planet in the developing Genesis system. Situated in the temperate green band around its star, it has oceans of liquid water interspersed with thickly forested continents. It was declared a…
LocationGliese II
Gliese II is the second planet from the sun of the Gliese system, Banu Protectorate. A smog planet, it has a dense, high-pressure atmosphere of carbon dioxide and nitrogen. Surface conditions on Gliese II can be…
LocationHades IV
Hades IV is a former planet in the Hades system. Once a sizable terrestrial world, it is split into two large pieces. The leading theory as to the cause of the planet's bifurcation is that it was likely impacted by a…
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