This article begins with the year 2018. This was when the private Yoyodyne Propulsion Systems Corporation delivered advances in Ion-drives, making solar-system missions possible.
Yoyodyne began on working on the DY-spacecraft, a vessel that was supposed to be assembled in orbit around Earth, being able to deliver large numbers of equipment and personnel to other planets of the solar system. Initially, the DY was intended as a carrier for wealthy passengers and corporations reaching out for other planets.
When the financial system collapsed once again, neither Yoyodyne nor other space flight organizations were able to maintain their efforts on their own. When the nation states allowed their space flight organizations to reach out for partners, the NASA, the Indian Space Research Organisation (ISRO) and the Russian Roskosmos formed the half private, International Space Agency (ISA) in order to combine their resources. They were partially funded by Russian investors. ISA relaunched the Constellation Program with the goal to establish permanent human settlements within the solar system. The Yoyodyne Corporation also entered cooperation with ISA. Despite the difficult financial circumstances, they managed to construct Ares I and launched it into space by 2028. It served as a testing bed for the Ares-series and the DY-technologies and was equipped with multiple docking possibilities. Once in space, Ares I was combined with the abandoned space station ISS, which had not been used since 2019. Until 2024, the DY-Facility was upgraded with building capabilities and increased radiation protection and then was moved to the second Lagrange-point by Ares II and Ares III. Ares III was the last Ares-type spacecraft to be launched from Earth. Later variants would be assembled by the DY-Facility to test her construction capabilities.
In 2030, Ares II was send to set-up a research complex on the moon, while Ares III had to stay back from its planned Mars Mission due to technical difficulties with the rotation-system that was supposed to establish limited gravity. Instead, Ares IV was sent to Mars and established a research complex in an area called Utopia Planitia in 2032. When Ares IV vanished in what later was found out to be a graviton ellipse and commanding Lt. John Kelly was reported missing, the public was horrified. It was believed that Ares IV had malfunctioned due to the fact that it was built in space in only two years. Yoyodyne reacted confident and used the DY-prototype Aurora to rescue the two stranded astronauts from Mars in order to prove that the DY-program was a step in the right direction.
2035 saw the Ares V under command of Captain Shaun Geoffrey Christopher reaching the Saturn moon Titan and conducting many experiments as well as launching a relay-satellite (Einstein-One) that stayed in orbit around Titan and was supposed to help keeping a connection to Earth for future missions.
In 2037, Colonel Alexei Poljakow commanded the ISA spacecraft Ares III, now repaired, to Jupiter and its moon Europe. Ares III launched a series of specially sterilized probes to gather samples from Europe’s surface. However, no life was found on Europe.
The same year saw the completion of the S.S. Odysseus (DY 01), the S.S. Scylla (DY 02) and the S.S. Charybdis (DY 03). The DY class was the first manned Earth vessel to not be propelled or equipped by a rocket engine. After some tests up to 2040, Odysseus and Scylla were supposed to travel beyond the solar system but had to return to the DY-Facility in 2045 because of problems with life support. However, Charybdis had stayed behind and while her two sister ships returned, she was re-equipped with better technology. Charybdis left the Solar System in 2048 under command of Colonel Steven Rickey. It was the first ship to transport humans beyond the solar system.
Sadly, Einstein-One reported a loss of telemetry from Charybdis in 2049, just a few days before the beginning of World War III.
2048 also saw the construction of the first DY-100 class vessel, the Botany Bay.
Being essentially a more advanced variant of the DY class, the DY-100 was designed to be equipped with exchangeable modules and carried a more powerful ion drive. One of the module designs included cryo-stasis chambers. If approved, the S.S. Botany Bay would have been able to carry out a sleeper-ship mission to Terra Nova, an inhabitable planet discovered around 20 light-years away.