The original Mars Colonization Timeline, published in October 2016

Ten years ago, in October 2016, we published the 1st version of the Mars Colonization Timeline – our speculative timeline for Mars exploration and colonization, blending optimistic tech forecasts with real-world progress. Since its debut, the timeline has always been the most popular section on humanMars.net, dozens tune in daily, inspired by the possibilities awaiting us on the Red Planet.

As the timeline is regularly updated and expanded – taking into account real-world developments in technology, as well as plans for the exploration and colonization of Mars – it now differs significantly from the version originally published. For this reason, we thought it would be interesting to revisit the original Mars Colonization Timeline, published in October 2016, and share it with you. Here it will stay unchanged forever.

Go to: 2020s – 2030s – 2040s – 2050s – 2060s – 2070s – 2080s – 2090s – 22nd century

2010s – The Mars hype is there

2016 – Elon Musk reveals SpaceX plans for the Interplanetary Transport System (ITS, formerly known as Mars Colonial Transporter).
2016 – ESA&Roscosmos's ExoMars Trace Gas Orbiter enters Mars orbit, but Schiaparelli lander crashes on the surface of Mars.
2018 – NASA's InSight lander lands on Mars.
2018 – SpaceX's Red Dragon becomes the first private spacecraft to land on Mars, and the largest overall.

2020s – Preparing for human arrival

2021 – ESA&Roscosmos's ExoMars rover lands on Mars.
2021 – NASA's Mars 2020 rover lands on Mars.
2021 – First Chinese orbiter, lander and rover reaches Mars.
2021 – 2nd Red Dragon lands on Mars with a drill and an experimental propellant plant to produce oxygen and methane from Martian atmosphere and soil.
2021 – United Arab Emirates Hope probe enters Mars orbit.
2022 – Two communications satellites are placed in Sun-Earth Lagrangian points L4 and L5 to overcome the problem of periodic communications blackout with spacecraft temporarily behind the Sun.
2022 – The location for SpaceX's future "Mars Base Alpha" is selected.
2023 – NASA's next generation (solar electric ion thrusters, broadband laser communications) satellite enters Mars orbit.
2023 – Japan's Martian Moons Explorer lands on Phobos to collect samples and return them to Earth.
2023 – 3rd Red Dragon lands on Mars with deployable solar panels and In Situ Resource Utilization (ISRU) system containing a chemical plant to produce water and nitrogen and an improved propellant plant (capable of producing and storing liquid methane and oxygen).
2024 – SpaceX's ITS makes its first unmanned test flight.
2025 – A group of unmanned Red Dragons lands near the selected location of future Mars Base Alpha with an improved ISRU system, deployable solar panels and experimental greenhouse; they are automatically interconnected to make a single system.
2025 – Another Red Dragon lands on Mars to retrieve samples collected by Mars 2020 rover and launch them back to Earth.
2027 – The first unmanned demonstration ITS spaceship "Heart of Gold" lands on Mars near the location of future Mars Base Alpha; basic post-landing procedures are tested, the ship refills itself with propellant (by an upscaled automatic ISRU system) and launches back to Earth.
2029 – Several unmanned ITS spaceships lands at Mars Base Alpha: a backup crew ship (which can serve as a temporary habitat), a cargo ship with ISRU system, small nuclear power reactor and deployable solar panels and a few cargo ships with rovers, miner/ tunneling droids and parts for a modular habitat and other equipment.
2029 – Some of the modules for NASA's Mars Base Camp (a manned station orbiting Mars built in collaboration with Lockheed Martin and Boeing) are prepositioned in Mars orbit.

SpaceX electromagnetic mass driver at Moonbase Alpha

Several renders of SpaceX electromagnetic mass driver at Moonbase Alpha to launch Moon-made AI satellites (data centers) into orbit. The renders are from an animation [you can watch at the end of the post] which was demonstrated during Elon Musk's Terrafab presentation on March 22, 2026.

A lunar mass driver is a proposed electromagnetic launch system optimized for the Moon’s low gravity (1/6th Earth’s) and hard vacuum, consisting of a long, straight acceleration track (typically several to tens of kilometers) lined with sequentially fired superconducting coils or linear synchronous motors that propel a payload-carrying sled or bucket to lunar escape velocity (~2.38 km/s). The track is usually elevated on supports or aligned along a natural slope (e.g., crater rim) to achieve the desired trajectory. Payloads experience continuous acceleration (potentially 20-100 g for brief periods) without atmospheric drag or chemical propellant expenditure, enabling theoretically high throughput at far lower recurring cost than rockets. Practical challenges include the immense construction effort, precise alignment for orbital insertion, recoil management into the lunar surface, and the energy storage needed for rapid repetitive launches.

Earth-Mars cycler concept by Maciej Rebisz

Earth-Mars cycler is a specialized orbital trajectory designed to shuttle spacecraft between Earth and Mars on a regular, repeating schedule. First proposed by astronaut Buzz Aldrin in the mid-1980s, a cycler orbit intersects both planets’ paths repeatedly, allowing a dedicated transport vehicle – the "cycler" – to swing by Earth, pick up crew or cargo, then cruise through interplanetary space before encountering Mars again.

Because the cycler itself never needs to slow down or perform large propulsive maneuvers to match planetary velocities, only small "taxi" vehicles are required to ferry astronauts between the cycler and each planet. This minimizes the delta‑V (fuel) requirements for the main habitat, making long-term habitation modules, radiation shelters, or artificial‑gravity setups more economical and sustainable across multiple missions.

Here is a concept for an Earth-Mars cycler system with two cyclers by Maciej Rebisz – a Polish concept artist and illustrator working for computer games and film industry:

Beyond fuel savings, cycler systems offer significant advantages for crew health and mission logistics. The consistent schedule – typically once every 2.1 years for Earth-Mars synodic alignment – means that life‑support, water, and radiation shielding infrastructure can remain aboard the cycler, reducing the need to rebuild or resupply large habitats for each departure.

Cyclers can also be designed to generate artificial gravity through rotation, mitigating the deleterious effects of microgravity on astronauts during the months‑long journey. However, practical implementation faces challenges: fine-tuning phasing maneuvers to ensure planetary fly‑bys occur at the correct times, performing occasional station‑keeping burns to counter perturbations, and integrating Earth and Mars rendezvous vehicles into a coherent logistical framework. Despite these complexities, Mars cyclers remain a compelling vision for establishing a reliable, reusable link between Earth and the Red Planet.

When the cycler flies past Earth, it is caught by one or several small taxi vehicles, delivering crew and cargo aboard the cycler:

Mars Colonization Timeline – Short Version

Have you ever imagined how humanity will explore and gradually settle the closest potentially habitable planet to Earth? Here we have created a speculative timeline of human exploration and colonization of Mars, blending optimistic tech forecasts with real-world progress. This is the SHORT VERSION of the full Mars Colonization Timeline, which you can explore HERE. The timeline, first published in October 2016, is regularly updated to reflect the latest developments.

2010s – Humanity regaining interest in Mars

Humanity's interest in Mars sparks anew in the 2010s as Curiosity drills into Gale Crater sediments that preserve records of ancient lakes, The Martian dramatizes the daily realities of living off local resources, and SpaceX reveals Starship plans while flying early prototypes. Robotic orbiters continue to explore the Red Planet from above while InSight lands to measure marsquakes and subsurface heat. These scientific returns, cultural reach and prototype hardware steps together rebuild the case for sending people to stay rather than only to observe.

2020s – Laying the groundwork for human arrival

The 2020s mark a surge in robotic exploration as Perseverance rover caches samples in Jezero Crater with Ingenuity proving sustained flight in the thin Martian air, and China delivers its first mission to Mars. SpaceX Starship advances through orbital tests, in-orbit refueling demonstrations and lunar cargo missions while early uncrewed vehicles attempt Mars landings and Marslink satellites begin a dedicated communications network. These efforts convert earlier visions into flight-proven transport chains and precursor systems ready for crewed arrival.

2030s – First humans on Mars

By 2035 the 2030s deliver humanity's first sustained presence on Mars when crews land at sites prepared by robotic forerunners and activate Mars Base Alpha with in-situ resource utilization plants, solar power arrays and nascent greenhouses. The initial teams focus on habitat expansion, water extraction and the first return flights that close the Earth-Mars loop, turning a fragile outpost into the foundation for permanent settlement. In parallel, the US and China are developing their separate bases in the Lunar South Pole region, competing for a dominant foothold there.

Mars colony for 5000 people in "For All Mankind" season 5

In season 5 of the alternate-history sci-fi series For All Mankind, set in an alternate 2012 where tensions between Martian colonists and their former home, Earth, reach boiling point, the international Happy Valley colony on Mars has grown into a settlement of more than five thousand residents. Happy Valley Base, located in Melas Chasma within the Valles Marineris system, was founded by NASA in 1995 during season 3. By season 4 (alternate 2003), it housed around 200 people.

In the nine years since, Happy Valley, governed by the Mars-6 Alliance (US, USSR, ESA, India, Japan, and the Coalition of Communist Countries for Spaceflight), has expanded far beyond simple growth. The colony now supports a genuine multi-generational population and features a far larger and more interconnected complex: expanded power, communications, fuel, and regolith processing facilities, multiple large agrodomes (several already operational with more under construction), a developed spaceport, and the distinctive radiation shield tower system. The central hub includes arrival halls with rover airlocks, control and laboratory modules, warehouses, and living quarters. A noticeable addition is the emergence of civilian commercial and social spaces alongside the industrial backbone. Helios and its Soviet competitor Kuragin both maintain offices on Mars; Kuragin is actively building a space elevator.

For All Mankind runs on the premise of a never-ending space race in a timeline where the Soviets reached the Moon first. Each season leaps roughly a decade into an increasingly divergent reality: season 1 (1969–1974) sees rival US and Soviet lunar South Pole bases; season 2 (1983) escalates resource competition on the Moon; season 3 (1992–1995) brings private company Helios and North Korea into a four-way race to Mars; season 4 (2003) features Happy Valley workers redirecting the lithium-rich asteroid Goldilocks into Mars orbit after "stealing" it from the M-7 Alliance.

Here we have collected high-resolution screenshots from season 5 (sourced from 4K UHD and optimized for web). They show the colony's exteriors and interiors without major plot reveals. There are separate galleries for Happy Valley agrodomes, spaceport and the Helios' office.

Martian spaceport and space elevator in season 5 of "For All Mankind"

In season 5 of the alternate-history sci-fi series For All Mankind, set in an alternate 2012, Happy Valley on Mars has grown into a settlement of more than five thousand residents. In the 9 years since season 4, colony's spaceport has been expanded and Helios's Soviet competitor Kuragin currently is building a space elevator for the colony.

Here we have collected high-resolution screenshots depicting Happy Valley's spaceport and the space elevator in construction:

Sojourner departing Happy Valley for a mission to Titan:

Helios' office at the Mars colony in "For All Mankind" season 5

In season 5 of the alternate-history sci-fi series For All Mankind, set in an alternate 2012, Happy Valley on Mars has grown into a settlement of more than five thousand residents. Helios Aerospace is a multi-national aerospace company and space manufacturer founded by Dev Ayesa, whom we have known since season 3. Helios acts as a private primary operator and transport provider for the Happy Valley colony. Although by Season 5, it is already facing fierce competition for Happy Valley development contracts from its Soviet competitor Kuragin, which has also opened its own separate office at Happy Valley and currently is building a space elevator for the colony.

Here we have collected high-resolution screenshots depicting Helios' office at the Happy Valley colony on Mars:

Helios' office is located into a hill near the Happy Valley colony:

Agrodomes of the Mars colony in "For All Mankind" season 5

In season 5 of the alternate-history sci-fi series For All Mankind, set in an alternate 2012, Happy Valley on Mars has grown into a settlement of more than five thousand residents. Among other facilities the colony features multiple large agrodomes (greenhouses) from which eight are already operational and several more in construction.

Here we have collected high-resolution screenshots depicting the work and recreation of the residents of Happy Valley in these agrodomes:

SpaceX' vision for Cislunar and Martian economy, according to its IPO filing

In its May 2026 S-1 IPO registration statement, SpaceX presents a clear, long-term economic roadmap that goes far beyond launch services. The company frames its mission as “building the systems and technologies necessary to make life multiplanetary,” with Starship positioned as the foundational infrastructure for a new space-based economy spanning Cislunar space (Earth-Moon system) and eventually Mars.

Cislunar Economy

SpaceX describes the Moon and surrounding space as the first practical layer of this economy. Key activities explicitly referenced or implied include:

• Cargo and passenger transportation: Regular Starship flights to the lunar surface, initially in support of NASA’s Artemis program, evolving into commercial cargo delivery and crew rotation.
• Space tourism: High-end lunar orbital and surface missions for private customers.
• Lunar bases and infrastructure: Establishment of permanent outposts serving as resource extraction sites, propellant depots, and potential spaceports. The filing positions the Moon as a critical “stepping stone” for deeper space operations, enabling in-situ resource utilization (ISRU) such as oxygen and water production from lunar ice.
• Orbital services: The S-1 highlights growing demand for satellite deployment, maintenance, and space-based manufacturing in Earth orbit and cislunar space.

These activities are presented as nearer-term, commercially viable stepping stones that can generate revenue while maturing Starship technology.

Martian Economy

Mars is described as the ultimate destination and the centerpiece of SpaceX’s multiplanetary vision. The filing outlines an ambitious Martian economy built on:

• Cargo and passenger transportation: Large-scale Starship fleets capable of carrying hundreds of people and thousands of tons of cargo per synodic window, enabling sustained settlement.
• Mars bases and self-sustaining colonies: Permanent human settlements that evolve into cities, with explicit references to energy production (solar and nuclear), manufacturing capabilities, and interplanetary industrialization on the Martian surface.
• Resource utilization and expansion: In-situ production of fuel, oxygen, water, and construction materials from Martian regolith and ice, reducing Earth dependency over time.
• Broader interplanetary activities: While not listed in detail, the S-1 alludes to future markets including asteroid mining support (as part of deeper-space logistics) and the general industrialization of Mars as humanity’s “backup” civilization.

The document repeatedly cautions that these Martian markets “do not exist today” and may take decades to become commercially viable. While the S-1 is bullish on the long-term opportunity, it is filled with standard SEC risk-factor language warning that Starship development delays, technical failures, or slower-than-expected market adoption could significantly postpone or prevent these visions from materializing.

Musk’s compensation

To underscore the seriousness of the Mars vision, the S-1 discloses Elon Musk’s performance-based compensation package: a grant of 1 billion Class B shares (with 10x voting power each), vesting in 15 tranches only when both aggressive market-capitalization milestones (up to $7.5 trillion) and the establishment of a “permanent human colony on Mars with at least one million inhabitants” are achieved. This ties Musk’s personal financial upside directly to the creation of a self-sustaining Martian civilization.

Nuclear spaceships slow down for Mars by Thomas Peters

Picture of the Day 19/04/2026 - Two spaceships powered by nuclear thermal rocket (NTR) engines slow down to enter medium Mars orbit near Phobos, the closest of the two natural Martian moons, by graphic designer and illustrator Thomas Peters (aka Drell-7).