Planetary Transportation Systems

Planetary Transportation Systems (PTS) is a Berlin-based German aerospace company formerly known as PTScientists and, before that, Part-Time Scientists. The organization emerged in 2009 as a volunteer-led team of scientists and engineers entering the Google Lunar X Prize, an international competition intended to encourage privately funded robotic missions to the Moon. It became the first German team to formally enter the competition on June 24, 2009, and subsequently developed a business model around lunar mission technology, payload delivery, technical consulting, partnerships, sponsorships, and related merchandising. The company’s principal technical program was a privately financed lunar landing mission centered on ALINA, the Autonomous Landing and Navigation Module. The proposed lander was designed to deliver two small rovers to the lunar surface, conduct a controlled landing, support communications with Earth, and carry customer and scientific payloads. The mission concept targeted a landing several kilometres from the Apollo 17 site in the Taurus–Littrow valley. One of its proposed objectives was to image the Apollo 17 Lunar Roving Vehicle from a distance, while treating historic lunar hardware as protected human heritage. The first mission concept also included a NASA Ames plant-growth experiment intended to examine germination and early development under lunar gravity and radiation conditions. The rover component was developed in cooperation with Audi. Prototype work used the name Asimov Jr. R3, while the planned flight vehicles were branded Audi Lunar Quattro. The rovers were designed with four-wheel drive, independently steerable wheels, solar-power systems, stereo imaging cameras, and communications links supported by industrial and telecommunications partners. ALINA was planned to carry two rovers and additional commercial or scientific payloads, creating a potential revenue stream from organizations, companies, and individuals purchasing lunar payload capacity. PTS also offered aerospace know-how as a consulting service. Earlier plans described a payload capacity of approximately 100 kilograms for the lander, including the two rovers, with individual payloads allocated space and mass according to mission requirements. Public material cited a price range of approximately €700,000 to €800,000 per kilogram for lunar payload delivery, but that figure is not treated here as a current financial metric because its applicable date and commercial status are unclear. The team did not reach the final stage of the Google Lunar X Prize. By 2017 it lacked a confirmed launch contract, and the competition ended without a winning mission. In the summer of 2019, the company filed for bankruptcy and the ALINA mission was placed on hold. Despite that setback, the organization remained associated with lunar transportation and lander-development work. In July 2021, Planetary Transportation Systems was selected together with ArianeGroup for work on ESA’s ASTRIS kick-stage, indicating a later role in European lunar logistics and spacecraft development. The company’s current operating status, ownership structure, executive leadership, and commercial continuation are not sufficiently documented in the supplied sources.

Planetary Transportation Systems traces its origins to June 2009, when a group of German scientists and engineers formed the Part-Time Scientists team to compete in the Google Lunar X Prize. The competition, launched in 2007, sought to stimulate privately funded robotic exploration of the Moon. The German team entered after several other competitors had already registered and became the first German group to officially join the contest. It later established PTScientists GmbH as the corporate vehicle representing the team. The early project combined public outreach with technical development. In August 2009, the team presented its plans at an open event connected with Germany’s Federal Ministry for Education and Research. In December of the same year, it gave a detailed presentation at the Chaos Communication Congress, including a public showing of a European-built private lunar rover prototype. These appearances helped frame the project as both an engineering effort and a public-facing experiment in privately organized space exploration. During the first half of the 2010s, PTScientists developed a lunar mission architecture based on a lander and small mobile rovers. The company pursued partnerships and prize-based funding while refining its business model. In early 2015 it received Google Lunar X Prize milestone awards in the Mobility and Vision categories, with reported prize funding totalling $750,000. In June of that year Audi was announced as a principal sponsor and rover-development partner. The rover program subsequently adopted the Audi Lunar Quattro name for the two planned flight vehicles, while the prototype was identified as Asimov Jr. R3. PTScientists also sought to commercialize access to its proposed lunar mission. It offered space for commercial, scientific, and institutional payloads, and promoted consulting based on the team’s mission and engineering experience. The ALINA lander was designed to support several payload classes, including rovers, stationary experiments, and the deployment of small orbital spacecraft. The first proposed mission reserved capacity for two rovers and other customer payloads. Publicly described customer commitments included payload interests from the United States, Canada, and Sweden, although only some payload details were disclosed. The Mission to the Moon concept announced in 2017 centered on ALINA, the Autonomous Landing and Navigation Module. The planned vehicle had a launch mass of approximately 1,250 kilograms and an intended lunar landing mass of roughly 320 kilograms. Its propulsion architecture included eight main engines and eight attitude-control thrusters. The mission plan called for an Ariane 64 launch and a landing near the Apollo 17 site in the Taurus–Littrow valley. The rovers were intended to demonstrate lunar surface mobility, imaging, navigation, and communications, including the possibility of filming the Apollo 17 Lunar Roving Vehicle from a safe distance. None of the planned vehicles was designed to survive the lunar night, making the mission primarily a technology demonstration rather than a long-duration surface operation. ALINA’s planned payload suite included a NASA Ames Lunar Plant Growth Experiment. That experiment was intended to study the germination and initial growth of plants such as Arabidopsis, basil, sunflowers, and turnips in a sealed biological container exposed to the lunar environment. Such work was relevant to astrobiology and the development of biological life-support systems for future space stations or lunar habitats. The rover and lander communications architecture was described as using technologies associated with Infineon, Nokia, Vodafone, and the European Space Agency’s ESTRACK ground network. The project ultimately encountered schedule and financing difficulties. By 2017 the team had not secured a launch contract and therefore did not advance to the Google Lunar X Prize finals. The competition later ended without a winning mission. During the summer of 2019, the company filed for bankruptcy and the ALINA project was suspended. A separate European lunar-lander study nevertheless provided a later technical opportunity: in January 2019, ArianeGroup announced an ESA-backed study of a lunar lander concept intended to support the extraction of resources from lunar regolith, with PTScientists involved as a subcontractor responsible for payload delivery aspects. In July 2021, PTS was selected with ArianeGroup to build the ESA ASTRIS kick-stage. The supplied sources do not establish the company’s current legal status, ownership, leadership, or whether the original ALINA mission has been revived.

• 2021

  Selection for ESA ASTRIS kick-stage work

  [1]Planetary Transportation Systemsen.wikipedia.org

  PTS was selected alongside ArianeGroup to build the ASTRIS kick-stage system for ESA.

• 2019

  Bankruptcy and suspension of ALINA

  [1]Planetary Transportation Systemsen.wikipedia.org

  The company filed for bankruptcy and the ALINA project was put on hold.

• 2017

  Mission to the Moon announced

  [1]Planetary Transportation Systemsen.wikipedia.org

  PTS announced a lunar mission using the ALINA lander and two rovers, with an intended Ariane 64 launch and a landing near the Apollo 17 site.

• 2016

  Audi Lunar Quattro name introduced

  [1]Planetary Transportation Systemsen.wikipedia.org

  The two planned flight rovers were publicly identified as Audi Lunar Quattro vehicles.

• 2015

  Google Lunar X Prize milestone awards

  [1]Planetary Transportation Systemsen.wikipedia.org

  The team won milestone prizes for Mobility and Vision, receiving reported prize funding of $750,000.

• 2015

  Audi partnership announced

  [1]Planetary Transportation Systemsen.wikipedia.org

  Audi became a principal sponsor and rover-development partner for the planned lunar mission.

• 2009

  Formation of the Part-Time Scientists team

  [1]Planetary Transportation Systemsen.wikipedia.org

  A German volunteer team of scientists and engineers formed to pursue a privately funded robotic lunar mission and entered the Google Lunar X Prize.

• 2009

  First public project presentations

  [1]Planetary Transportation Systemsen.wikipedia.org

  The team presented its mission at a German federal research ministry open event and later at the Chaos Communication Congress, where it showed a European private lunar rover prototype.

PTS positioned itself as a privately funded European lunar transportation and exploration company, combining robotic spacecraft development with commercial payload delivery, consulting, and high-profile industrial partnerships.

• Lunar lander

  ALINA

  ALINA, the Autonomous Landing and Navigation Module, was the company’s proposed lunar lander. It was designed to deliver two small rovers and additional commercial or scientific payloads to the Moon. The architecture included eight main engines, attitude-control thrusters, communications equipment, and accommodation for rover, stationary, or orbital payloads. The first planned mission targeted the Taurus–Littrow valley near the Apollo 17 landing site. The project was placed on hold after the company’s 2019 bankruptcy.

• Lunar rover

  Audi Lunar Quattro

  Audi Lunar Quattro was the name given to two planned lunar rovers developed with Audi. The vehicles were designed with four-wheel drive, independently pivoting wheels, a tilting solar panel, and stereo cameras mounted on a movable front head for three-dimensional imaging. Their projected maximum speed was approximately 3.6 kilometres per hour. The rovers were intended to demonstrate lunar mobility and image historic Apollo-era hardware.

• Lunar rover prototype

  Asimov Jr. R3

  Asimov Jr. R3 was the prototype associated with the company’s lunar rover development program. It served as a technology-demonstration platform preceding the two planned Audi Lunar Quattro flight rovers.

• Commercial space service

  Lunar payload delivery

  PTScientists marketed access to its planned lunar mission for scientific, institutional, and commercial payloads. ALINA was designed to carry rover, stationary, and orbital payload classes, while the proposed first mission included customer experiments and equipment for live video transmission. The company also offered its engineering and mission-planning expertise as a consulting service.

• Spacecraft propulsion and transfer stage

  ASTRIS kick-stage

  ASTRIS is a European Space Agency-related kick-stage program developed with ArianeGroup. Planetary Transportation Systems was selected with ArianeGroup in 2021 to contribute to its construction. The supplied material does not specify the final technical configuration, production status, or operational history.

• 2015Audi Lunar Quattro partnership campaign

  Germany · International

  PTS and Audi promoted a joint lunar rover program, linking private lunar exploration with automotive engineering, public demonstrations, and the Audi Lunar Quattro identity.

  Outcome. The partnership produced prototype and mission-development work, but the planned rovers were not launched in the proposed mission.

  Source
• 2009Google Lunar X Prize campaign

  Germany · International

  The Part-Time Scientists team entered the Google Lunar X Prize with a privately funded lunar landing, rover, and communications concept. Public presentations and technical demonstrations were used to build visibility and support.

  Outcome. The team won milestone awards but did not reach the finals because it lacked a launch contract.

  Source

• 2021

  Selection for ASTRIS kick-stage developmentStrategy

  Background

  European lunar transportation studies were examining commercial and institutional approaches to delivering payloads and extracting resources on the Moon.

  Action taken

  PTS was selected with ArianeGroup to build the ESA ASTRIS kick-stage system.

  Aftermath

  The supplied references do not provide later technical, contractual, or operational results.

  Source

• 2019

  ALINA project placed on hold after bankruptcyOther

  Background

  The company filed for bankruptcy during the summer of 2019 while its planned lunar mission remained without a completed launch pathway.

  Action taken

  PTS suspended the ALINA mission program.

  Aftermath

  Later involvement in ESA-related ASTRIS work suggests continued association with space transportation, but the supplied sources do not establish whether ALINA resumed.

  Source

• 2017

  Shift toward a dedicated Mission to the MoonStrategy

  Background

  After years of Google Lunar X Prize development and partnership building, PTS presented a more defined lunar mission centered on the ALINA lander and two rovers.

  Action taken

  The company proposed an Ariane 64 launch, a landing near the Apollo 17 site, rover deployment, real-time communications, and commercial and scientific payload operations.

  Aftermath

  The mission did not proceed as announced. The lack of a launch contract prevented advancement to the competition finals, and the project was later put on hold after the 2019 bankruptcy.

  Source

1. 1Planetary Transportation Systemsen.wikipedia.org
2. 2Planetary Transportation Systems official websitepts.space