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re: NASA: new solar system , Trappist-1 ,where life may have evolved on 3 planets

Posted on 2/24/17 at 7:05 am to
Posted by ChineseBandit58
Pearland, TX
Member since Aug 2005
42596 posts
Posted on 2/24/17 at 7:05 am to
quote:

if we traveled to this solar system at 20,000mph, it would take us approximately 5,900 years to reach it.

Not crunching the numbers, but I just know you are off by several hundred orders of magnitude here. At that slow speed, it would take a shite lot more than a few thousand years - possibly many millions if not billions.
Posted by RDOtiger
Zachary
Member since Oct 2013
1146 posts
Posted on 2/25/17 at 10:23 pm to
My bad...you and Hog on the Hill are right. Redoing the math I came up with 1,307,027 years - that seem more plausible?
Posted by goatmilker
Castle Anthrax
Member since Feb 2009
64347 posts
Posted on 2/25/17 at 10:35 pm to
Its like titles.
Posted by DavidTheGnome
Monroe
Member since Apr 2015
29166 posts
Posted on 2/25/17 at 10:44 pm to
quote:

Cause, NASA says so .... Last year they detected gravitational waves - Billions of years ago two black holes had sex and created gravitational waves . This year its this EXO planet BS .. No proof of anything , just observed bending light and articulated with animations ..They have to put something out to continue to get those billions ...



Seriously
Posted by Colonel Flagg
Baton Rouge
Member since Apr 2010
22799 posts
Posted on 2/25/17 at 10:50 pm to
quote:

I have a feeling that NASA already knows intelligent alien life exists.


I would say if we know there exist intelligent alien life for sure and not just using probability my assumption is we would probably be conquered.
Posted by DavidTheGnome
Monroe
Member since Apr 2015
29166 posts
Posted on 2/25/17 at 10:52 pm to
quote:

But I thought it was more looking at how the planet affects the star. I don't see why we would get any discernible light from it.



We don't in the case of the system in the OP and most of the planets we've found outside our solar system, but see here for a list of directly imaged exoplanets: LINK
Posted by DavidTheGnome
Monroe
Member since Apr 2015
29166 posts
Posted on 2/25/17 at 10:54 pm to
quote:

Tidal forces earth size bodies that close together would exert on each other would make things rough

Lots of volcanic and seismic activity, not to mention tides might cover continents



Yep, the system in the OP is a lot closer together than our own. So while several of the planets fall within the Goldilocks zone in terms of sunlight they'd experience plenty of tidal forces from their neighbors gravity.

LINK




Jupiters moon Io is a good example: LINK

quote:

With over 400 active volcanoes, Io is the most geologically active object in the Solar System.[8][9] This extreme geologic activity is the result of tidal heating from friction generated within Io's interior as it is pulled between Jupiter and the other Galilean satellites—Europa, Ganymede and Callisto.
This post was edited on 2/25/17 at 11:00 pm
Posted by DavidTheGnome
Monroe
Member since Apr 2015
29166 posts
Posted on 2/25/17 at 11:11 pm to
quote:

Bro, because you were asking where that number was coming from a few replies back... Where I say that our known SUBSET of planets (as in a subset of all possible planets in the universe) is 1300.

(I'll say it a 5th different way just in case: Yes there are billions and billions of planets out there. We have only FOUND, OBSERVED, MEASURED, etc 1300.) We cannot say how probable life is STATISTICALLY.

We have 1 data point out of a growing 1300 planet SUBSET... It is IMPOSSIBLE mathematically to extrapolate ANY probablility from that.

We can't say life exists on 0.1% of all planets in the universe... That would be a wild guess.

Until we find scientific proof (not just methane), like until have an actual alien microbe in a petri dish, we wont have that second data point... Without that we can't say shite about the statistical commonality of life.



Agreed, we have nothing to base any claim of life elsewhere on nor can we do any statistical analysis on it. For all we know we've already discovered an exoplanet with life on it but we have no way of knowing. I do think it's exceedingly likely that life exists elsewhere, intelligent life that is conscious of itself at that, but at the moment we have no way to say that.
Posted by goatmilker
Castle Anthrax
Member since Feb 2009
64347 posts
Posted on 2/25/17 at 11:21 pm to
quote:

Without that we can't say shite about the statistical commonality of life.


Considering the unimaginable numbers(billions of galaxies)
I find it impossible to even consider life is only here. Almost comical in fact.
Posted by DavidTheGnome
Monroe
Member since Apr 2015
29166 posts
Posted on 2/25/17 at 11:23 pm to
quote:

Considering the unimaginable numbers(billions of galaxies) I find it impossible to even consider life is only here. Almost comical in fact.



As do I.
Posted by shinerfan
Duckworld(Earth-616)
Member since Sep 2009
22320 posts
Posted on 2/25/17 at 11:26 pm to
quote:


I would say if we know there exist intelligent alien life for sure and not just using probability my assumption is we would probably be conquered.



Assuming there is intelligent life still doesn't negate the vast distances. Even if they're a million years advanced from us - maybe the journey just isn't possible.
Posted by Colonel Flagg
Baton Rouge
Member since Apr 2010
22799 posts
Posted on 2/26/17 at 1:29 am to
When you consider how much our civilization has advanced in the last couple of decades. I can not even fathom the capabilities or challenges of a million year old advanced alien civilization.
Posted by DavidTheGnome
Monroe
Member since Apr 2015
29166 posts
Posted on 2/26/17 at 1:34 am to
They would have the potential to be overwhelmingly advanced, but space is much too vast for it to really be a threat though.
Posted by ManBearTiger
BRLA
Member since Jun 2007
21845 posts
Posted on 2/26/17 at 3:16 am to
Sounds like fake news to me. We'll have to throw NASA a few more billion to determine the veracity of this news. Pony up taxpayers.
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