The Moon, another interesting place to look for clues of extraterrestrial

For a long time man has been looking for clues to answer the eternal question of whether we are alone in the universe or else there are other intelligent species in it. But how and where to look? The question is not simple. So far most of the efforts, the project SETI @ Home to the head, have focused on finding intelligent extraterrestrial life quadrants sweeping the cosmos in search of electromagnetic signals of natural origin. Unfortunately this technique has not produced many results, since the universe is extremely vast and the number of signals to analyze enormous.

With that in mind, Paul Davies and Robert Wagner, two renowned astronomers from the University of Arizona, have been thinking it's time to shift some focus, or rather to expand it. Specifically propose the following: technical efforts mainly focus on searching the human Moon and other artificial structures possible extraterrestrial presence tracks, which a priori may sound a little weird but not so much after hearing the arguments of the two scientists.

Although both are aware that there are very few chances that intelligent extraterrestrial life has ever traveled to the moon and left some trace of their presence in the form of device or mark, think we should start looking at the satellite because:

• It's close, which enables us to analyze in great detail.

• We have several instruments, such as LRO , which can photograph the lunar surface in great detail (for example, is able to photographs in detail that our astronauts left footprints on the surface).

• On the geology of the moon, footprints and other marks on the surface potential can survive for a long time.

• If a hypothetical aliens advanced enough to travel between stars and galaxies had decided at some point to visit the Earth-Moon system in the last million years, the lunar surface would have been the ideal place to observe the planet and its inhabitants.

In short, what Davies and Wagner propose is to consider also the moon in the career of finding extraterrestrial intelligence, SETI start a new project over other projects without neglecting or abandoning them. His idea is to develop the project with collaborative techniques as in SETI @ Home, that NASA provide all the images taken by LRO to be analyzed systematically by groups of volunteers, which is inexpensive and may also lead to other discoveries related to the satellite.