What are transient lunar phenomena?

In News

Transient Lunar Phenomena (TLPs) are short-lived, unusual events observed on the Moon’s surface, including flashes of light, colored glows, and hazy mists. These phenomena can last from a few seconds to several hours and suggest that the Moon is more geologically and dynamically active than previously thought.


Analysis

  1. Observation History
    • TLPs have been documented for over a thousand years, including reports from Apollo 11 astronauts in 1969.
    • Commonly observed at Aristarchus and Plato craters, among other locations.
  2. Characteristics of TLPs
    • Bright, star-like flashes
    • Colored glows, often reddish
    • Localized mists or obscurations of the lunar surface
  3. Leading Scientific Theories
    • Outgassing: Release of gases like radon and argon from beneath the Moon’s surface due to gravitational stress or heating.
    • Meteoroid Impacts: High-velocity collisions producing visible flashes of light.
    • Electrostatic Effects: Lunar dust becoming charged and levitating.
    • Earth’s Atmospheric Effects: Distortions affecting how the Moon appears to observers on Earth.
  4. Scientific Significance
    • Indicates that the Moon is geologically active.
    • Encourages further observational and experimental research to understand lunar surface dynamics and potential hazards for future lunar missions.

Static / Background Information

AspectDetails
PhenomenonTransient Lunar Phenomena (TLPs)
DurationSeconds to hours
Common LocationsAristarchus crater, Plato crater
First RecordedHistorical accounts spanning centuries; Apollo 11 astronauts reported TLPs in 1969
Possible CausesOutgassing, meteoroid impacts, electrostatic phenomena, atmospheric distortion
SignificanceSuggests Moon is more dynamic than previously believed

Updated -  October 21, 2025 03:52 pm | The Hindu