Earth Becoming Invisible to Aliens

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Chances of
earth being detected by alien life forms are disappearing because
of the digital revolution, a leading space scientist has claimed.

Dr Frank Drake
said the phasing out of analogue transmissions from television,
radio and radar was making our planet electronically invisible from
outer space.

While old style
signals used to spread out millions of miles into outer space, even
reaching some distant stars, digital transmissions are much weaker
and therefore are less easy to detect by extra-terrestrial life
forms.

Scientists
on earth are constantly monitoring the heavens for any sign of transmissions
from other planets and it is assumed other life forms out there
will be doing the same.

But Dr Drake,
who founded the US based organisation Search for Extra-terrestrial
Intelligence (SETI), 50-years ago, said the phasing out of analogue
transmissions was making this virtually impossible.

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the rest of the article

January
27, 2010

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