Earth becomes 'invisible' to aliens

Scientists have just announced that the digital revolution can turn the earth 'invisible' to aliens.

Dr. Frank Drake, founder of Search for Extra-terrestrial Intelligence (SETI), said the phases transmitted from television, radio and radar have made our planet invisible to outer space.

Previously, old signal lines often traveled millions of kilometers out into space even to distant stars, today the digital transmission waves are weaker and therefore life on our earth difficult to be detected by the outside.

Earth is becoming 'invisible' to aliens

Scientists on earth continually monitor signals transmitted from other planets, so they think extraterrestrials are also doing the same thing.

Drake said that the earth is surrounded by a 50-light-year-long radiation layer, the old transmissions produce a total radiation of about 1 million watts, but with no new transmission any radiation escapes outside the universe.

The doctor explained: 'Now the total amount of radiation emitted about 2 Watts is no bigger than the radiation from a mobile phone. If this continues, soon we will become invisible. '

Frank Drake said that he believes there is a lot of extraterrestrial life that only makes them better than our planet. more stars and more frequencies'.