TF写作真题第023套（mm013）

MM_013

A transient lunar phenomenon, often abbreviated as tlp, is a short-lived, color, or change in appearance on the surface of the moon. most instances of tlps are described as increases in the overall luminosity of a spot on the moon; however, sometimes observers report a decrease in the region’s brightness or even a change in its color to red or violet. even today, with the development of technology and observational equipment, tlp are poorly understood and scientists are not able to pinpoint the physical mechanism responsible for their creation.

One possible explanation is that many transient lunar phenomena might not be associated with the moon itself but could be a result of unfavorable observing conditions and observation errors. for instance, some reported tlp are for objects near the field of telescope observation which the observer mistakenly attributes to the moon. other non-lunar explanations include the viewing of earth-orbiting satellites and meteors or observational error.

Another possible explanation for a tlp is impact events such as meteor strikes. impact flashes from such events have been detected from multiple and simultaneous observations. there is no doubt that the moon has been the victim of numerous high speed collisions, as the pockmarked surface indicates, and there is a high possibility that tlp are a result of a meteor hitting the surface and causing a bright flash.

A third possible explanation for tlps is light reflected from a type of rock found on the surface of the moon. this rock type catches light from the sun and can be observed from earth. depending on the angle at which light strikes these rocks, the observed tlp may last a few seconds or even a few hours. these rocks come in a variety of colors and could explain why tlp are often observed as a red or violet color shift

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