After the Moon and Mars, scientists are beginning to consider an even more distant destination for the future of human space exploration: Titan, Saturn’s largest moon.

The idea took center stage at the Humans to Titan Summit 2026, held on 11 and 12 June, which focused on exploring whether Titan could become humanity’s next major destination after Mars.

During the summit, researchers and experts examined how challenging such a mission would be, the technologies required to make it possible, and the steps that need to be taken now to pave the way for a future human expedition.

Amanda Hendrix, Director of the Planetary Science Institute, described the meeting as the first organised effort to seriously address the prospect of sending humans to Titan.

As she noted, everyone recognises that such a mission remains a very distant prospect, but she believes it is important to begin treating Titan as a realistic destination for future exploration.

She argued that humanity must already be thinking about its next major objective beyond Mars in order to maintain the momentum of space exploration.

Why Titan is considered one of the Solar System’s most compelling worlds

During the summit, participants examined a wide range of practical issues that a future human mission would need to overcome.

Experts discussed spacesuits, transportation systems, habitat design, airlocks, surface lighting conditions and the weather astronauts could encounter.

Titan is regarded as particularly unique because it possesses a complex weather system—but unlike Earth’s, it is not based on water. Instead, its atmosphere and weather cycle are driven by hydrocarbons, creating an environment unlike anything found on our planet.

Discussions also explored the possibility of using Titan as a launch base for missions to other moons of Saturn, such as Enceladus, as well as the potential use of the moon’s natural resources.

According to scientists, Titan contains significant quantities of methane, nitrogen and oxygen, which could one day be used as fuel or as raw materials for even deeper exploration of the Solar System.

Amanda Hendrix stressed that there is still extensive planning to be done, but emphasised that there is also ample time to develop the necessary technologies.

One of the main challenges facing scientists is the length of the journey. As she explained, researchers must either find ways to shorten travel times or develop solutions that would allow astronauts to withstand such a lengthy voyage with as few adverse effects as possible.

She also believes that one of Titan’s greatest attractions as a destination is its dense atmosphere. Dominated by nitrogen, it provides natural protection against many forms of harmful radiation—a significant advantage for future human visitors.

Scientists’ understanding of Titan was greatly advanced by the European Huygens probe, which landed on Saturn’s moon on 14 January 2005 as part of the joint NASA-ESA Cassini-Huygens mission.

Dragonfly and the vision of a human presence on Titan

The next major milestone in Titan exploration is expected to come with NASA’s Dragonfly mission.

The nuclear-powered spacecraft is scheduled for launch no earlier than 2028 and will take approximately six years to reach its distant destination.

During its mission, which is expected to last more than three years on Titan’s surface, Dragonfly will use its rotors to travel between different locations across the moon.

The spacecraft will collect surface samples and analyse them using scientific instruments built into the vehicle itself.

Also taking part in the summit was Scot Rafkin, Director of the Space Studies Department at the Southwest Research Institute and an expert in planetary and atmospheric science.

Rafkin said everyone involved acknowledged that sending humans to Titan represents an extraordinarily ambitious objective. However, he reminded participants that history’s greatest achievements in exploration began when people dared to pursue goals that initially seemed impossible.

As he pointed out, Titan is one of the most fascinating worlds in the Solar System—a place of rivers, lakes, weather systems, sand dunes and complex chemical processes unlike anything known on Earth.

According to Rafkin, pursuing a human mission there establishes a long-term scientific vision that extends beyond both Mars and the Moon.

He also argued that efforts to explore Titan will accelerate the development of technologies that will prove valuable not only for that moon but for missions throughout the Solar System.

As he put it, human exploration of Titan is not a question of physics, but primarily one of time, technology and commitment.

In his view, scientists already understand most of the key challenges that must be overcome, while many of the necessary technologies are already under development.

Every advance in propulsion, power systems, robotics, computing, life-support systems and communications brings the goal of a human presence on Titan closer, while simultaneously opening up new opportunities for space exploration.

He acknowledged that not all the solutions are yet in place, but believes the path towards achieving the goal is becoming increasingly clear.

Some steps—such as sending a new orbiter to Titan to study its system in greater detail—could be undertaken immediately. Other capabilities, however, may require decades, or even generations, of technological progress.

Rafkin stressed that the summit was not organised to design a specific mission. Rather, he said, its purpose was to launch a broader movement around the idea.

Amanda Hendrix also revealed that a second Humans to Titan Summit is planned to coincide with the launch of the Dragonfly mission in 2028, marking the continuation of an effort that aims to turn one of humanity’s most ambitious aspirations into a future reality.