Washington, DEC 7: A NASA scientist stated that, intelligent aliens may have already visited Earth, but claims human would not have noticed due to their ‘extremely tiny’ size.
Silvano P. Colombano, a computer scientist at NASA Ames research centre and professor, put forth this assumption in his research paper at NASA’s scan of universe for civilization as part of its ‘search for extraterrestrial intelligence’ (SETI) program.
According to Colombano, ‘scientist must ‘revisit our most cherished assumptions’ and consider the idea of different characteristics which have implications of everything from aliens’ life span to its Hight’.
‘The extra-terrestrials would have looked hugely different to the carbon-based organisms currently roaming our planet”.
He said, ‘Super- intelligent’ aliens would possess technology that human cannot even imagine, may have capacity of inter-sellar space travel. The size of the “explorer” might be that of an extremely tiny”.
Further in his research, he stated that, ‘we might be missing the signals of civilization inhabiting a planet far older than Earth’.
Additionally, colombano suggests that the reason of UFO phenomena may have gone unnoticed or overlooked are because, in addition to assuming a low likelihood of concepts, the subject is generally avoided by scientists.
This research paper concludes with, proposing more aggressive approach by considering such things as “willingness to stretch possibilities as the nature of energy and space-time” and speculating about “what kind of societies we might expect to find”.