NOVA scienceNOW | Cosmic Perspective | Intelligent Life
3UuPjYqs95g • 2009-08-12
Transcript preview
Open
Kind: captions
Language: en
and now for some final thoughts on the
search for life in the
universe I've always wondered how we
would fare if the search for intelligent
life in the universe were conducted by
intelligent aliens in another star
system suppose they used radio waves to
observe us and suppose they had super
sensitive detectors with specially
designed decoders imagine what they
would find if they fell within our radio
bubble that expanding sphere of waves
from the dawn of our broadcast
Technologies then the aliens would first
hear our early radio programs like Amos
and Andy as these signals pass them by
some years later they might decode TV
programs such as the howdy Duty show
then comes The Beverly Hillbillies
followed by graphic images from the
Vietnam and Gulf Wars the aliens might
then look at technology markers in our
atmosphere and find high r ration areas
from nuclear test blasts and Global
greenhouse warming from the burning of
fossil
fuels after all that what else could the
aliens possibly conclude but that Earth
shows no signs of intelligent
life meanwhile with the growth of
Internet radio and cable television
Earth May one day fall silent to
eavesdropping aliens with no broadcast
signals for them to
decode they might wonder if we
disappeared completely
but more likely they will conclude as do
those on Earth who search Elsewhere for
intelligence that the absence of
evidence is not the same as the evidence
of
absence and that is the cosmic
perspective
Resume
Read
file updated 2026-02-13 12:57:58 UTC
Categories
Manage