NASA will contribute the Aeolus atmospheric-science payload, while Relativity Space supplies the spacecraft, rocket, and cruise operations to deliver the instruments to Mars, in a public-private partnership that aims to accelerate science delivery and readiness for future human missions.

Aeolus is a NASA-developed suite of four instruments designed to provide the first integrated daily global view of Martian winds, temperatures, dust, and clouds, with a planned 2028 launch.

Relativity Space has a background in 3D-printed rocket development and is pivoting from smaller rockets to larger designs like the Terran R as it pursues Mars missions amid fundraising and leadership changes under CEO Eric Schmidt.

The mission could mark a milestone for private spaceflight reaching Mars and may expand Relativity Space’s business beyond this project, though it carries risk given the company’s limited proven orbital capability.

The report appears in Aviation Week's Aerospace Daily & Defense Report, a paid market intelligence service, reflecting industry-wide coverage of this partnership.

NASA agreement details are mentioned, though the publicly disclosed figures are not specified in the excerpt.

With Eric Schmidt now leading Relativity Space following a majority-stake acquisition, the company must design and build the spacecraft and launch vehicle within a tight timeline, while NASA has not disclosed the contract value.

Relativity Space is nearing a first-stage qualification as it pursues a Mars mission under new ownership and leadership.

Relativity Space operates from California and is expanding its ambitions to Mars beyond its current near-Earth activities.

The broader Mars exploration landscape includes challenges, such as a recent loss of contact with MAVEN, underscoring gaps in Mars atmospheric research infrastructure.

The project is supported under NASA’s first six-year reimbursable Space Act Agreement, providing a stable framework for sustained collaboration and mission continuity.

The partnership blends NASA science with commercial development to increase mission cadence and focus resources on high-value science for future crewed and uncrewed Mars missions.