Aliens never visited Earth, says scientist
5 Jul 2008, 1127 Hrs

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London, July 5 ANI):A leading scientist has dismissed suggestions that the human race has over been visited by aliens from outer space.

Following reported sightings of UFOs, there has been renewed speculation that aliens may be watching us and even visiting us quite frequently.

But, according to a report in the Telegraph, Dr Christian Kaiser, from the School of Physics and Astronomy at the University of Southampton, has said that it is unlikely any can have made it this far.

"There has been breathtaking progress in finding planets. The proof of life on another planet would be a huge scientific discovery and would also severely challenge our social, political and religious thinking," said Dr Kaiser.

"Until recently, most detected planets have masses much larger than that of Earth, but new discoveries push that limit down to only a few Earth masses. Planets comparable to Earth should have solid surfaces and may harbour life," he added.

"However, the distances between stars in our galaxy are enormous. Therefore, there is no way that life forms from another planet, if such exist, could have already visited us on Earth," explained Dr Kaiser. (ANI)