"Digital Revolution" Has Hidden the Earth from Space

Because of the digital revolution the possibility that Earth will be observed by aliens is diminishing, argue the most famous extraterrestrial life search enthusiasts. Dr. Frank Drake says that the transition from analog to digital television and satellite radio has hidden our planet from radio-wave receivers.

The old analog signals could travel million kilometers in space without being weakened and even reach some of the closest stars. However, digital broadcasts are much weaker and because of their popularity the Earth may be more difficult to detect by guests from space.

Today, scientists are continuously monitoring and expecting to receive any signals from other planets and it is expected that other life forms do the same on their planets.

Dr. F Drake, 50 years ago founded an organization in USA which is called "Search for Extra-terrestrial Intelligence, SETI". He says that the disappearance of analog signals actually weaken the probability of we being discovered by others. According to the scientist, the Earth is surrounded by 50 light-years of radio wave radiation fog, caused by the old type signals and about 1 million watt power analog television signals.

The scientist says that the current retransmission satellites, that are surrounding the earth, divert most of their signals back to earth and virtually no artificial electromagnetic waves are spared into the open space.

"Currently, the open space receives very small amounts of radio waves - their total capacity is as low as a few watts. This is almost the same amount your mobile phones radiate. If this continues, our planet will never be discovered", - says the scientist.

The scientist was discussing this matter on Tuesday in London in the Conference organized by the London's Royal Society which was arranged in order to discuss questions like how to detect possible life on other planets and what would it mean for our society.

It is interesting to know that scientists are dealing with such matters that are bogus for some people, because the question of extraterrestrial life is still not answered to this day and still remains a mystery. Maybe the replacement of old analog signals will prevent us of being discovered by aliens.

Source: http://www.telegraph.co.uk/science/science-news/7073574/Satellite-TV-making-humans-invisible-to-aliens-on-other-planets.html