ESA Rosalind Franklin ExoMars Rover — Specs & Review
Specifications
| Brand | ESA |
|---|---|
| Model | Rosalind Franklin ExoMars Rover |
| Year | 2028 |
| Category | Space |
| Autonomy | semi-autonomous |
| Environment | outdoor |
| Connectivity | ESA Ground Stations, Mars Orbiters Relay |
| Country of origin | FR |
Key features
- 2-metre subsurface drill — deepest ever on Mars
- Access to radiation-protected subsurface biosignature zone
- Named after DNA X-ray crystallographer Rosalind Franklin
- ESA flagship astrobiology mission
- Solar-powered with battery storage
- Targeting 2028 launch (revised from 2022)
- Complementary to Perseverance: surface vs subsurface search for life
What is it?
Rosalind Franklin is ESA's flagship Mars astrobiology rover, named after the British crystallographer whose X-ray diffraction work contributed to the discovery of DNA structure. Its 2-metre drill is the mission's defining feature — accessing subsurface material where ancient biosignatures may be preserved against cosmic radiation.
Mission facts
- Drill depth: 2 metres (deeper than any previous Mars lander)
- Science goal: Search for signs of life in subsurface samples
- Original launch: 2022 (cancelled — Russia's Roscosmos withdrawal post-Ukraine)
- Revised launch: Targeting 2028 with replacement US propulsion
- Power: Solar panels + battery
- Mass: ~310 kg
- Origin: Europe (ESA), assembled in UK (Airbus)
The subsurface habitability case
Mars' surface is bombarded by cosmic and UV radiation, destroying complex organic molecules in the top 1-2 metres of regolith. Below 2 metres, ancient organic compounds and potential biosignatures could be preserved. Rosalind Franklin's drill is the primary tool for accessing this protected zone — something Curiosity and Perseverance cannot do.
Russia withdrawal and redesign
The ExoMars mission was designed with Roscosmos providing the Kazachok surface platform and Proton launch vehicle. Following Russia's invasion of Ukraine in February 2022, ESA terminated the cooperation. ESA is now redesigning the surface platform with European and US partners, targeting a 2028 launch.
How it compares
Rosalind Franklin vs Perseverance: Perseverance drills surface samples (~7cm depth); Rosalind Franklin drills 2m subsurface. They are complementary rather than competing missions, with Rosalind Franklin accessing the subsurface biosignature zone that Perseverance cannot.
Limitations
- Launch delayed to at least 2028 — significant programme uncertainty
- Solar-powered (dust storm vulnerability vs nuclear Curiosity/Perseverance)
- Programme cost escalation due to Russia withdrawal redesign
FAQ
Why does Rosalind Franklin drill 2 metres?
Mars' surface is sterilised by UV and cosmic radiation to a depth of approximately 1-2 metres. Subsurface material below this depth is protected from radiation and may preserve ancient organic compounds or biosignatures that surface exploration cannot find.
Why was the 2022 launch cancelled?
The ExoMars 2022 mission was suspended following Russia's invasion of Ukraine in February 2022. Roscosmos was providing the Kazachok landing platform and Proton launch vehicle. ESA terminated the cooperation and is redesigning the mission for a 2028 launch.
Is Rosalind Franklin different from ESA's Mars Express orbiter?
Yes. Mars Express (2003) is an orbital spacecraft. Rosalind Franklin is a surface rover — ESA's first Mars rover, designed to drive across the Martian surface and drill into it.
What is the Rosalind Franklin rover named after?
The rover is named after Rosalind Franklin (1920-1958), a British chemist and X-ray crystallographer whose X-ray diffraction images of DNA were instrumental in determining the double helix structure.
When will Rosalind Franklin launch?
As of 2026, ESA is targeting a 2028 launch following redesign of the surface platform after Russia's withdrawal from the programme. Launch windows to Mars occur every 26 months.