Archive · 12 Jan 2026
NASA Cancels Mars Sample Return Mission
NASA has decided to cancel its Mars Sample Return (MSR) mission.
This mission was supposed to bring back rock samples from Mars to see if there was ever life there.
The mission got too expensive, going from $5 billion to $11 billion.
Now, the samples that the Perseverance rover collected on Mars might stay there forever.
NASA will use some money to keep working on technologies for future Mars missions.
The European Space Agency (ESA), which was helping with the mission, might now use their spacecraft for a different Mars mission.
Scientists are disappointed because the samples could have important clues about life on Mars, but without bringing them back, we can't be sure.
NASA has cancelled the Mars Sample Return (MSR) mission due to skyrocketing costs.
The mission's budget ballooned from an estimated $5 billion to $11 billion.
The Perseverance rover has collected 30-plus rock cores on Mars, which may contain clues to ancient life.
A new US spending bill allocates $110 million for a 'Mars Future Missions' fund to preserve MSR technologies.
The cancellation affects NASA's partnership with the European Space Agency (ESA), which may now use its spacecraft for a standalone Mars mission.
- Who
- NASA and the European Space Agency (ESA)
- What
- Cancellation of the Mars Sample Return (MSR) mission
- When
- The decision is backed by a new US spending bill released this week, awaiting final approval
- Where
- Mars and Earth
- Why
- The mission's costs skyrocketed from an estimated $5 billion to $11 billion, making it too expensive for lawmakers
- Mission Name
- Mars Sample Return (MSR)
- Original Cost Estimate
- $5 billion
- Revised Cost Estimate
- $7 billion
- Final Cost Estimate
- $11 billion
- Current Budget Allocation
- $110 million for Mars Future Missions
- Samples Collected
- 30-plus rock cores
- Potential Clues
- Ancient life on Mars
- Partners Involved
- European Space Agency (ESA)