Remember VIPER, NASA’s Off-Again, On-Again Lunar Rover? It’s Still in Limbo
NASA’s lunar rover VIPER, originally set for launch this year to explore the lunar south pole for buried ice and chemical compounds, has faced setbacks and uncertainties. The nearly complete rover was canceled in July 2024 due to delays and cost overruns, marking the second time NASA has axed a lunar rover mission in recent years. Despite attempts to find a commercial partner to launch VIPER, NASA recently canceled its call for proposals, leaving the project in a state of limbo.

Why can’t VIPER get off the ground?
The rover’s budget issues were compounded by supply chain disruptions during the COVID-19 pandemic and the failure of the platform built by aerospace company Astrobotic, which was slated to launch VIPER. Despite being fully assembled and in the final stages of testing, the mission was canceled after NASA had invested nearly $800 million into its construction.
What kind of science was VIPER supposed to do?
VIPER was designed to search for resources such as water ice, carbon dioxide, and helium in the lunar subsurface to support the establishment of a permanent research base on the moon. Equipped with four instruments, including a drill called TRIDENT, the rover aimed to analyze samples from up to a meter deep to gather crucial data for NASA’s Moon to Mars exploration efforts.
What’s next for VIPER?
With NASA exploring new strategies for the rover’s future, details on potential partnerships and launch opportunities remain scarce. Possibilities include reopening negotiations with Astrobotic or seeking international partners to share operational costs. Despite uncertainties, the fact that NASA has not officially canceled VIPER is seen as a positive sign amidst proposed budget cuts to the agency.