SETI: Are We Alone

[Smoke]

Toward the end of a program on the Science Channel (The Universe: Astrobiology) there was a section that featured Seth Shostak, the SETI Institute's Senior Astronomer. Seth mentioned his on line radio show, "Are We Alone" which I had never heard of before. The show has been around for just over a year and you can download the past episodes in either mp3 or wma format here..

Probably old news to Spacehead et als.

 

[Soggysocks]

Thats new to me. Only have heard him as a guest on Planetary radio. Sounds interesting. Thanks for the link Smoke

 

[zig3695]

i have no doubt there is more living life out there. question is are we about as advanced as this universe has got or is everything else wayyyy ahead of us? we need to get those quantum antennas online and listening...

 

[Desslok]

Originally posted by: zig3695
i have no doubt there is more living life out there. question is are we about as advanced as this universe has got or is everything else wayyyy ahead of us? we need to get those quantum antennas online and listening...

Wasn't there a recent study that suggested that radio waves would actually disperse before they got to the first star? Please correct me if I am wrong.

 

[Assimilator1]

All radio waves disperse from the point of transmission (think of dropping a stone into the middle of a millpond & watching the waves spread & weaken ,akin to omni-directional radio) ,it's just whether they're still strong enough to be picked up at xxx distance.

If their is any interstellar radio comms it would use directional aerials to compress & focus the signal for far greater range (as we do here for many radio transmissions).Is it enough for us to hear it? depends on distance & power ,& I couldn't even guess there ,maybe someone else can?
They say that our military radars regularly blast out high powered signals into space which IIRC could be picked up in other systems.Also sometime in the 1970s the Arecibo telescope transmitted the worlds most power signal straight out into space (no answer yet) ,I can't remember how powerful that signal was though.

Smoke have you any idea?
Oh & thanks for the link ,I'd not heard of that:thumbsup:

 

[Smoke]

Originally posted by: Assimilator1
Smoke have you any idea?
Oh & bths for the link ,I'd not heard of that:thumbsup:

Of course, I know the answer. You know I know all things but it gets boring having me explain everything.

 

[Assimilator1]

Yea in other words you've forgotten too

:laugh:

(btw your grammar slipped their )

 

[Smoke]

Originally posted by: Assimilator1
Yea in other words you've forgotten too

:laugh:

(btw your grammar slipped their )

Talk about the pot calling the kettle black, " ... slipped there. :laugh:

 

[Assimilator1]

lol

Nah I'm sure I'm right! ,I thought 'there' was for places?.....

 

[Smoke]

I give up.

lol