Grammar

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be appear happen last observe darken cause glow occur react
set observe observe escape explain last know be want be
Scientists across the world puzzled as to why there are flashes on the surface of the moon. This unusual phenomenon has been several times a week. Sometimes the flashes of light are very short, while at other times the light longer. Scientists have also that on occasion, there are places on the moon's surface that temporarily. Experts on the moon have been speculating on what is behind the flashes. One scientist said the impact of a meteorite can the moon's surface to briefly. Another scientist wondered whether the flashes when electrically charged particles of solar wind with moon dust.

A lunar telescope has been up in Spain to what is happening on the moon. The head of the team behind the telescope is Hakan Kayal, a professor of space technology. He said: "Seismic activities were on the moon. When the surface moves, gases that reflect sunlight could from the interior of the moon. This would the luminous phenomena, some of which for hours." He added: "The so-called transient lunar phenomena have been since the 1950s, but they have not sufficiently observed." Professor Kayal said: "Anyone who to build a lunar base at some point must of course familiar with the local conditions."

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