NASA and SpaceX to Launch ESA’s Rosalind Franklin Mars Rover

The European Space Agency’s Rosalind Franklin rover is moving closer to a Mars launch after years of delays, with NASA confirming it has begun implementation work to support the mission and selected SpaceX’s Falcon Heavy as the launch vehicle, despite ongoing budget scrutiny.

After more than a decade in development, the Rosalind Franklin rover — designed to search for signs of past or present life beneath the Martian surface — is progressing through final preparation stages. Originally scheduled for launch in 2022, the mission was postponed twice due to geopolitical tensions and technical challenges, including the suspension of cooperation with Roscosmos following Russia’s invasion of Ukraine. Now, with a revised partnership structure and renewed funding commitments, the mission is targeting a launch window in 2028.

NASA Advances Implementation Work

In April 2026, NASA announced it had begun formal implementation activities for the ESA-led Rosalind Franklin mission, marking a significant step toward execution. According to a statement from NASA’s Science Mission Directorate, the agency is now providing critical support in areas such as navigation, communications, and mission design, leveraging its deep experience from previous Mars rover programs like Perseverance and Curiosity.

“NASA is contributing essential engineering and operational expertise to ensure the success of this high-priority astrobiology mission,” said Dr. Nicola Fox, Associate Administrator for NASA’s Science Mission Directorate. “Our involvement reflects both our scientific interest in Mars and our commitment to international collaboration in deep space exploration.”

Falcon Heavy Selected for Launch Despite Budget Pressures

In a related development, NASA confirmed that SpaceX’s Falcon Heavy rocket has been selected to launch the Rosalind Franklin rover from Kennedy Space Center. The decision comes despite recent proposals in the U.S. Congress to reduce NASA’s planetary science budget, which had raised concerns about the viability of outer planet and Mars missions in the coming decade.

The Falcon Heavy, capable of delivering up to 16.4 metric tons to trans-Mars injection, was chosen for its proven reliability and sufficient payload capacity to accommodate the rover, its descent module, and associated cruise stage. This will mark the first time a SpaceX launch vehicle is used for an ESA-led Mars mission, representing a growing trend of commercial launch providers supporting international deep space efforts.

Mission Objectives and Technical Challenges

The Rosalind Franklin rover carries a unique payload designed to drill up to two meters below the Martian surface — far deeper than any previous rover — to access subsurface samples that may be shielded from surface radiation and oxidants. Its primary instrument, the Mars Organic Molecule Analyzer (MOMA), is a joint European-U.S. Development capable of detecting a wide range of organic compounds, including potential biosignatures.

Path Forward and Remaining Hurdles

While implementation has begun, the mission still faces several hurdles before launch. Final integration and testing of the rover’s systems are underway at Airbus Defence and Space’s facility in Stevenage, United Kingdom. Key milestones include environmental testing to simulate Martian conditions and end-to-end checks of the entry, descent, and landing sequence.

Funding remains a point of attention. Although ESA member states have committed to covering the bulk of the mission’s estimated €1.5 billion cost, NASA’s contributions are subject to annual appropriations. Officials from both agencies have emphasized that continued political and financial support will be essential to maintain the 2028 launch target.

If successful, the Rosalind Franklin mission could provide the most direct evidence yet of whether Mars ever hosted life — or if it still does, hidden beneath the surface. As one of the most ambitious astrobiology missions ever sent to another planet, its outcome could reshape scientific understanding of habitability in the solar system and beyond.