ISRO Detects Water Plumes on Lunar South Pole!

In a groundbreaking discovery that could rewrite our understanding of the Moon, ISRO scientists have detected intermittent water plumes erupting from the lunar south pole. The finding, announced early this morning from ISRO's telemetry, tracking and command network (ISTRAC) in Bengaluru, marks a significant step forward in the search for lunar water and potential resources.

The discovery stems from data gathered by the Chandraayan-3 orbiter's Lunar Polar Surface Thermal Experiment (LPSTE) instrument over the past six months. Unlike previous detections of water ice in permanently shadowed craters, this observation suggests a dynamic hydrological cycle on the Moon, with water being released and re-absorbed depending on lunar temperature fluctuations.

Evidence of Lunar Water Eruptions

The LPSTE instrument, designed and developed at the Space Physics Laboratory (SPL) of the Vikram Sarabhai Space Centre (VSSC) in Thiruvananthapuram, measures the temperature gradient of the lunar surface. Scientists noticed periodic spikes in the thermal readings, correlating with the lunar sunrise at specific locations within the Shackleton crater region – a permanently shadowed area known to harbor water ice. Further analysis revealed these spikes were consistent with the evaporation and sublimation of water ice, resulting in short-lived plumes extending several kilometers above the surface.

"These plumes appear to be transient, only occurring when the sunlight grazes certain areas of the shadowed craters," explained Dr. Anjali Sharma, lead scientist on the LPSTE project, speaking to News Reporter Live. "This suggests that the water ice is not uniformly distributed and that there are pockets of concentrated deposits near the surface. We believe this is a major science news story."

What This Lunar Water Discovery Means

This discovery has profound implications for future lunar missions. The presence of accessible water ice could be a game-changer for establishing a sustained human presence on the Moon. Water can be used not only for drinking and life support but also for producing rocket fuel, reducing the need to transport vast quantities of resources from Earth. This week's findings could drastically cut mission costs.

Reportersays, the intermittent nature of the plumes suggests that the water ice reservoir is being replenished, possibly through micrometeorite impacts or solar wind interactions with the lunar soil. Understanding these replenishment mechanisms is crucial for assessing the long-term viability of lunar water resources. Future research will focus on mapping the distribution of water ice deposits and determining the size of the reservoir.

"We are working closely with the DRDO to develop technologies for extracting and processing lunar water," stated ISRO Chairman S. Somanath during a press conference. "This discovery strengthens our resolve to pursue lunar resource utilization and establish a permanent lunar base. It's a proud moment for Indian science."

Future Lunar Research and Exploration

The next phase of research involves deploying advanced sensors to directly measure the composition of the plumes and monitor their behavior over extended periods. ISRO is also collaborating with international partners, including NASA and the European Space Agency (ESA), to coordinate future lunar missions and share data. As of March 31, 2026, scientists are planning to send rovers to explore the areas where the plumes have been detected, collecting samples and conducting in-situ analysis.

The discovery highlights the importance of continued lunar exploration and the potential for unlocking the Moon's vast resources. It also underscores the crucial role of Indian scientific institutions like ISRO, VSSC, and SPL in pushing the boundaries of space exploration.