VIPER (Volatiles Investigating Polar Exploration Rover)
NASA ice-prospecting rover built for a 100-day mission at the lunar south pole. NASA announced on 17 July 2024 that it would discontinue the project over cost growth and launch delays, then on 19 September 2025 awarded Blue Origin CLPS task order CS-7 (potential value $190 million) with an option to deliver VIPER on a second Blue Moon MK1 lander targeting late 2027; NASA will decide on that option after Blue Origin's first MK1 flight, which had not flown as of the last check.
Objective. Search for and map volatile resources such as water ice at the lunar south pole during a 100-day surface mission.
Facts
- Kind
- Payload
- Mission type
- Prospecting
- Target
- MoonMons Mouton, lunar south pole region
- Launch
- Not recorded
- Phase
- In developmentNASA release 25-064 (2025-09-19): the award base covers accommodation design and an offload demonstration, with delivery subject to a separate option. The late-2027 target is for landing; no primary launch date is established. Whether the delivery option has subsequently been exercised was not established in this review.
- Outcome
- Not applicable
- Why it is included
- Stated resource objective
Participants
Operators, payload owners, carriers and customers are recorded separately.
| Organization | Role |
|---|---|
| National Aeronautics and Space Administration | Operator |
| Blue Origin | Carrier |
Resources and evidence
| Resource | Evidence |
|---|---|
| Water ice | Targeted |
| Volatiles | Targeted |
Dated events
- 2025-09-19
NASA CLPS task order to Blue Origin for VIPER delivery
NASA awarded Blue Origin a CLPS task order, with an option, to deliver the VIPER water-ice prospecting rover to the lunar South Pole in late 2027 on a second Blue Moon MK1 lander. NASA gives a total potential value of $190 million.
Sources (2) and evidence gaps
The CLPS task order has a total potential value of $190 million.
NASA has awarded Blue Origin of Kent, Washington, a CLPS (Commercial Lunar Payload Services) task order with an option to deliver a rover to the Moon's South Pole region.
- Amount is total potential value including an option; exercise of the delivery option not confirmed
- 2024-07-17
NASA announces intent to discontinue VIPER
NASA announced it would stop VIPER development, citing cost increases, launch delays and the risk of further cost growth, and invited expressions of interest in using the assembled rover at no cost to the government.
Sources (1)
NASA stated cost increases, delays to the launch date, and the risks of future cost growth as the reasons to stand down on the mission.
- 2020-06-11
NASA CLPS task order for Astrobotic to deliver VIPER ($199.5 million)
NASA awarded Astrobotic $199.5 million to deliver the VIPER water-ice prospecting rover to the lunar south pole on its Griffin lander; NASA cancelled VIPER in July 2024 and Griffin Mission One continued without it.
Sources (2) and evidence gaps
NASA has awarded Astrobotic of Pittsburgh $199.5 million to deliver NASA's Volatiles Investigating Polar Exploration Rover (VIPER) to the Moon's South Pole in late 2023.
Astrobotic will continue its Griffin Mission One within its contract with NASA, working toward a launch scheduled for no earlier than fall 2025. The landing without VIPER will provide a flight demonstration of the Griffin lander and its engines.
- Whether the task-order value was modified after VIPER's removal is not stated.
Open evidence gaps
- Whether NASA has exercised the delivery option under task order CS-7 after its September 2025 announcement has not been established from the primary pages reviewed.
Record history
changes to this record's facts, newest first
| Changed | Field | Was | Now | Reason | Source |
|---|---|---|---|---|---|
| 2025-09-19 | phase | Cancelled | In development | Source update | [2] |
| 2025-09-19 | participants.carrier | org-astrobotic (Griffin lander, CLPS) | org-blue-origin (Blue Moon MK1, task order CS-7) | Source update | [2] |
| 2024-07-17 | phase | In development | Cancelled | Source update | [1] |
| 2024 | launch date | 2024 (late) | 2025-09 (rover readiness) | Schedule slip | [6] |
| 2022 | launch date | 2023 (late) | 2024 (late) | Schedule slip | [1] |
Sources
6 sourcesNASA stated cost increases, delays to the launch date, and the risks of future cost growth as the reasons to stand down on the mission.
Blue Origin will deliver VIPER to the lunar surface in late 2027, using a second Blue Moon MK1 lander, which is in production.
NASA will make the decision to exercise that option after the execution and review of the base task and of Blue Origin's first flight of the Blue Moon MK1 lander.
- [4]VIPER
On September 19, 2025, NASA announced that VIPER and its instruments will be delivered to Mons Mouton by a Blue Origin Blue Moon MK-1 lander as part of task order CS-7.
It's now expected to launch on Blue Origin's second MK1 mission next year.
additional schedule and supply chain delays pushed VIPER's readiness date to September 2025