History of Alien Contact
The discovery of intelligent aliens is one of the defining moments in human history and an event that has likely led to history taking a different path than it would have taken otherwise. But it is moot to attempt to imagine that might have happened, had there hadn't been the discovery of the Flaugergues Radio Anomaly One on Mars, or Honore City, as it better known as.
Honore City and the Yeistell
Honore City had been discovered on Mars by the early NASA robotic probe Mariner 6, when it passed Mars and was painted by the last functional targeting radar system active around Honore City, on July 31, 1969, a mere two weeks after Neil Armstrong and Edwin 'Buzz' Aldrin had taken the first steps onto the surface of the Moon. At first the signals had been taken as a malfunction of the Thule early warning radar system operators, but a similar signal had been discovered as Mariner 7 passed Mars several days later. Images taken by Mariner 6 showed the first images of Honore City, near the Flaugergues Crater.
It took a while until it became clear what the signals of the targeting radar and the images were. An alien settlement on Mars. This sparked a massive wave of interest in Mars by both the Soviet Union and the United States of America and both super powers began a new race into space. While the Soviet Union had given up the rave to the Moon, they were insisting that they would make it to Mars before the US, while the US invested more money into NASA. Other than in the race to the Moon, both super powers knew that they would need more of an infrastructure in cislunar space and began to expand their manned and unmanned space programs.
A few first observations were made by robotic probes from both sides, while manned missions were prepared. And indeed, the Soviet Union was the first nation to get to Mars and land a scientific crew of four on the red planet, however during the surface stay of the scientific team in March 1991, the Soviet Union collapsed under its own weight in the wake of the reforms attempted by Michail Gorbachew and the crew returned into the Russian Federation.
The United States followed with their Mars landing just a week later, but were more prepared for a longer stay within the ruins of Honore City. They had brought habitats for twelve people and supplies and ISRU systems for several years, so that half of the crew remained on Mars, while the rest returned to Earth with some artifacts.
During this first stay, the first skeletons of the 'Zippies' were discovered, later to be known as Yeistell, after it was possible to translate their language.
Over the next several decades humanity managed to accumulate more and more information about the Yeistell, especially in the wake of the discovery of several computer systems that could be reactivated once and energy source was attached. It was possible to translate their language in 2054, though his necessitated the support of two ASIs that had specialized in linguistics, as well as skills and techniques developed over the decades of research into the Yeistell.
Technological artifacts of the Yeistell helped humanities research into material science, as well as exobiology, but in the end it turned out that while the Yeistell were capable of building large structures, like the destroyed dome of Honore City, they were technologically less advanced than the Quetzal.
Modern techniques allowed to date of Honore City back to about 150.000 BC, when the city was build on Mars by the Yeistell, as a last resort hiding place to protect themselves from an unknown attacker only known as Dronkried, which does translate 'Agressor' or 'Invader' from the main Yeistell language. There is not much known about the Dronkried, besides that they were more technologically advanced than the Yeistell and destroyed their home world and colonies with sustained nuclear bombardment. The dome of Honore City however was not destroyed due to action of the Dronkried, but due to a structural failure and the population of the dome was killed largely due to insufficient redundant life support equipment inside any dwellings.
Only in 2098 it was possible to trace back the home system of the Yeistell as 109 Piscium, a G3V main sequence star in the constellation Pisces, about 108 light years distant to Sol. Currently, there are no scientific missions planned to 109 Piscum.
Quetzal and Turukal
The discovery of the Quetzal and the Turukal happened on Earth, rather surprising for the scientific main stream, but less than surprising by certain pseudo-scientific fringes.
The first discovery were the Quetzal in March 1994, when an archeological dig in the preclassic mesoamerican Olmec settlement La Venta came across a high grace chromium-vanadium steel door inside a previously undisturbed pyramid. The chamber behind the door contained the mummified remains of a Quetzal, later identified to be Sub-Commander Ranyr of Sertin, who had crash-landed near the coast in his shuttle craft, about 1000 BC.
Ranyr of Sertin did not remain the last Quetzal to be discovered from the same time frame. In 1996 the mummified remains of Mostur of Awenda were found, when a Chinese archaeological dig opened up the tomb of 'The Imperial Dragon', an advisor of King Kang of the Zhou Dynasty. Not only were his remains discovered, but also a large number of writings made by Mostur in both the early Chinese script, and one of the Quetzal languages, which allowed the creation of translation software for their writing system. An in depth analysis of his writing showed he, as well as many several more Quetzal and a few Turukal had been part of a group that wanted to uplift humanity to a Quetzal equivalent level to defend against the Onouch’l Automata, an enemy that had destroyed their home world with a biological weapon. Needless to say that this plan did not work out.
Several more Quetzal were recovered in Germany, Japan, Wales and Egypt.
The presence of the Turukal was inferred for the most part, until the remains of a wombat like life form was discovered in the Australian outback within a cave. Local aborigine lore spoke of a 'sky wombat' that came down from the sky and had brought some knowledge of a 'Great Enemy', but had perished before it could help the ancestors. It is currently unknown how he died.
Currently there are scientific missions planed to go to 61 Virginis and Beta Virginis, the home systems of the Quetzal and Turukal respectively are planned for 2160s.
The existence of the Europans was first indirectly discovered when the Europa Orbiter probe detected a lot of magnetic anomalies beneath the icy surface of Europa in 2030, most of which were slowly moving around in random patterns. This created a rush for discovering what exactly those magnetic anomalies were and multiple nations sending manned missions to the Jovian moon to uncover this mystery. First contact with the Europans was made on November 5, 2036, when a submarine probe of the joint Canadian-American mission breached the surface ice in a relatively recent break of the ice and almost immediately met a number of Europan scholars on an expedition attempting to take a look at Jupiter.
Actual contact could only be made two years later, when a submarine probe of the Peoples Republic of China manages to reach an European city and communicate with its resident AI god, who in turn readily exchanged linguistic data.
It is sadly of note almost all Europans cities are unwilling to open any form of contact with extra-Europan life forms, choosing to either simply ignore, or act hostile to any form of contact. As such there is only few Europan Cities in contact with humanity since First Contact in 2056.
So far there is only a single AI God that has left Europa to settle on Ceres, taking in various Europan family units that have either been exiled by an European City or choose to leave Europa.
Tianut and Rak'ris'ayc
Whereas almost all aliens sophonts have been discovered within the solar system, first contact with the Tiaunt was made in December 2034, when the SETI project discovered a radio signal coming from a planet in the system of Beta Hydri, 24 light years distant to Earth. This signal contained an almost hour long analog preamble, in the form of the first episode of Carl Sagans Cosmos, followed by a long series of digitally encoded signals of a First Contact message, largely containing mathematical informations in an attempt to make contact.
While there were some parts of the scientific and political community inferred less than savory intentions from the signal, the majority knew that this was different from any previous discovery, the first First Contact with an alien species from beyond the solar system. So a signal was prepared to communicate with the aliens from Bety Hydri, in the form of an almost 1 TB large signal, containing numerous mathematical data, as well as an attempt to provide some basic human vocabulary.
And since people now knew about life in that system, a constellation of radio telescope satellites, the Sagan Array, was constructed to listen to any signals coming from the system, inferring that the Bety Hydrans were doing the same. And indeed, numerous information could be gathered by the Sagan Array could detect and follow numerous signals of radio, television and digital information coming from the habited planet, which in turn allowed to get a good picture of life on the world, and its inhabitants, from language to culture, though this was only possible with the help of specialized ASIs.
Not only one, but two species inhabited the world of Jerat, the Tiaunt and the Rak'ris'ayc. The latter looked very suspiciously like the Quetzal and through the signals coming from Jerat, it was inferred the Rak'ris'ayc, were a survivor population that had settled on the world and become associated with a Great Cataclysm and thereby shunned by the Tiaunt.
The next few signals directly meant for communication between Earth and Jerat were exchanged in the languages of the others, as the Tiaunt had a longer time to observe signals from Earth and translate several languages. As such there was limited diplomatic contact with Jerat and its several super nations.
The Miners are the 'odd ones out' of all alien sophonts encountered by humanity.
There is nothing known about these sphonts. Not their own species name, how they looked, or the reason of their appearance within the Sol System about 350.000 years ago.
All known about these sophonts is they have entered the Sol System, mined out and sculptured a number of asteroids, recovered all their technology and left.
Initially it was thought there had been no Ormiold on Earth during the short time when the Survivor fleet arrived in Sol, until someone took a closer look at the so-called Sicord Hoax. In 1997 a group of paleontologists discovered a pair of skeletons in Blue Creek Valley that strongly resembled those of Dromaeosaurus, but were larger. Initially hailed as the discovery of a new species of Dromaeosaurae, dromaeosaurs sicordi, problems with dating the finds appeared quickly, such as a number of unknown artifacts found with them, and that they appeared to have been buried. They were labeled as hoax at the time, but remained in the National History Museum of Utah, from where they were handed over to their families that had remained in stasis and were given a proper burial in Blue Creek Valley, where they had died 3000 years ago.
Today, the majority of all Ormiold are living on Earth, as they have no problems at all with Earth biota nor the reverse. However, a larger population does live on Ceres. On Earth they have build a currently growing settlement, Darass Istin, in the continental plains of the Midwestern United States. They have introduced several of their domesticated animals  as well as their food plants and are largely profiting from the tourist trade, though there is internal resistance at being a large tourist trap.
- The, at that time, brand new AI God 'Gravitas Free Zone'. The AI God named itself after a fictional AI entity form an early 21st century novel
- Sauropods and ceratopids