Transient lunar phenomenon

A transient lunar phenomenon (TLP) is a sometimes inexplicable change of color or shape seen on the surface of the moon. Some may be caused by gas escaping from underground cavities after moonquakes.

See also:

• Three-letter abbreviations

External Links

"Light Side of the Moon" (http://members.lycos.co.uk/petergrego/ft105.htm) -- An article from the Fortean Times[?] for December 1997 by the astronomer Peter Grego

Transient Lunar Phenomena (and other weirdness) (http://www.planetfusion.co.uk/~pignut/tlp) -- Essay on TLP followed by links

Chronological Catalog of Reported Lunar Events, July 1968 (http://www.mufor.org/tlp/lunar) -- NASA report on TLP sightings from 1540 to 1968