49 replies to this topic

[Timonthy]

Sure there will be life on planets unlike Earth. However with what we know and with the limited resources don't you think it's more practical to work with what we know?

[Widdekind]

Intelligent Aliens might not live on planets, anymore, at all (but, have become completely "space adapted", living in artificial superior-to-planets space habitats)

[scowl]

There's no reason to speculate about other strange life forms. We'll know life when (and if) we ever see it.

We're not excluding planets.

[PersonFromPorlock]

One problem is that if the alien life is different enough, we might not recognise it as being intelligent: we've been debating the intelligence of dolphins for 65 years without coming to a conclusion, for instance, and them we can lay hands on!

That's why I've said for years that SETI should be looking for alien radar signals. Radar's too useful not to be exploited by anyone who's discovered it, a water-oxygen atmosphere dictates its frequency parameters, and the very high-powered and directional beams should carry well. We may miss the more alien technologies this way, but if we discover a 3Ghz pulse-modulated signal with a 400 pulse-per-second pulse recurrence frequency and a ten-second recurrence rate coming out of a distant planetary system, we'll have a pretty good idea of what we're looking at.

[Robbo]

RADAR won't travel that far. The standard airport Watchman will give you about 60 miles. Ultra low frequencies will travel a lot further. However any signal producing equipment would have to be based in orbit if you wanted some form of space RADAR since high frequency waves will be massively attenuated by the atmosphere and low frequency waves tend to bounce off the ionosphere and back down to Earth.

In order for us to detect a radio wave from another planet, that planet must have deliberately sent it our way, since anything else will just appear as random spikes in the spectrum. No way is anyone on a distant world sitting down to watch Hitler's broadcasts.

Anyway - aren't we already starting to look for life in all kinds of places? 20 years ago no one would have given Europa a second thought but now the subsurface ocean theory seems to be the strongest.

Edited by Robbo, 24 November 2011 - 11:50 AM.

[Tesla II]

Even if we find life i doubt it would walk on 2 or 4 legs i doubt it would even walk. If there was any intelligent life in our solar system they would already came here to say hello, because we are about to discover them and we just started with some brave space travel plans and concepts.. So 2 options, first they are hiding from some unknown reason second they arent intelligent at all, bacterias or some other sort of micro organisms.

[ynotnoty]

HMS Dreadnought, on 22 November 2011 - 03:37 PM, said:

It makes perfect sense to me, who knows what varied forms of life have occurred under far different conditions to our own planet.

since when was weather capable of creating genetic information? lol

[HMS Dreadnought]

ynotnoty, on 24 November 2011 - 01:56 PM, said:

since when was weather capable of creating genetic information? lol

I did not mention the word "weather" once  

[scowl]

Nuke_em, on 24 November 2011 - 01:39 PM, said:

Even if we find life i doubt it would walk on 2 or 4 legs i doubt it would even walk.

So, like, how would it get around?

Quote

If there was any intelligent life in our solar system they would already came here to say hello, because we are about to discover them and we just started with some brave space travel plans and concepts..

We've already proved beyond any doubt that there is intelligent life on a planet in our solar system.

[psyche101]

Nuke_em, on 24 November 2011 - 01:39 PM, said:

Even if we find life i doubt it would walk on 2 or 4 legs i doubt it would even walk. If there was any intelligent life in our solar system they would already came here to say hello, because we are about to discover them and we just started with some brave space travel plans and concepts.. So 2 options, first they are hiding from some unknown reason second they arent intelligent at all, bacterias or some other sort of micro organisms.

How could something that cannot walk kick off an Industrial Revolution?

[ynotnoty]

HMS Dreadnought, on 22 November 2011 - 03:37 PM, said:

It makes perfect sense to me, who knows what varied forms of life have occurred under far different conditions to our own planet.

ok what exactly do you mean by conditions then?

[DONTEATUS]

I speculate every day about the aliens around me  Like ? Where  do they get those really baggie low hanging pants? ANd Why do they wear those Dark sunglasses at night?
And Who else on this world would really eat at McDonalds ?

[HMS Dreadnought]

ynotnoty, on 24 November 2011 - 11:33 PM, said:

ok what exactly do you mean by conditions then?

Everything that supports life.

[lightly]

Life forms on this planet have been found in conditions assumed, at various times in the past, to be incapable of sustaining living plants and creatures.....  like,  total darkness (supported by more typical life forms from sunlit regions), extremely high temperatures, extremely high pressures,  and so on and so forth.   We shouldn't assume we would even recognize, by appearance, some forms of life as being alive?
   Nor should we assume they wouldn't be surprisingly similar ?
  
  check this out if you like:  http://gizmodo.com/5704158/nasa-finds-new-life
NASA has discovered a new life form, a bacteria called GFAJ-1 that is unlike anything currently living in planet Earth. It's capable of using arsenic to build its DNA, RNA, proteins, and cell membranes. This changes everything.
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NASA's geobiologist Pamela Conrad thinks that the discovery is huge and "phenomenal," comparing it to the Star Trek episode in which the Enterprise crew finds Horta, a silicon-based alien life form that can't be detected with tricorders because it wasn't carbon-based. It's like saying that we may be looking for new life in the wrong places with the wrong methods. Indeed, NASA tweeted that this discovery "will change how we search for life elsewhere in the Universe."

http://www.google.co...142l3-1.1.4l6l0

[ynotnoty]

HMS Dreadnought, on 25 November 2011 - 10:45 AM, said:

Everything that supports life.

so what your saying is life was created by chance just a bunch of random molecules that came together i cant get past this to my mind this is absurd