French astronomer, Audouin Dollfus of Observatoire de Paris, has recently finished analyzing his 1992 observation of disturbances on the lunar surface.

For hundreds of years there have been reports of changes on the moon. Whether the claims have been sightings of glows or mists hanging over a specific lunar feature, they have always been controversial.

On December 30, 1992, Dollfus witnessed something on the moon that was not there the day before. It was a series of glows on the floor of the large crater Langrenus. He was able to observe them for a few days before they faded away. He spotted clouds of light fluttering inside the crater. When he left the telescope and returned the shape of the glows had changed.

Dollfus believes that the glows are caused by escaping gas that lifts dust off the lunar surface, into the sunlight. He also points out that Langrenus, when observed in detail, has an extensive series of fractures on its crater floor, from which the gas could be escaping.

Some lunar observers have expressed surprise that such a mist should have been seen above Langrenus, which was not regarded as a prime candidate for lunar changes. According to BBC News, so-called "Transient Lunar Phenomenon" (TLP) have been reported from time to time but definite evidence has been lacking.

During the Moon landing in 1969, Neil Armstrong was asked to look for glows on the Moon due to prior ground observations. He did see part of the glow, but later couldn't be sure which region it was in.