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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 RDOtiger
Posted on 2/24/17 at 7:05 am to RDOtiger
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 on 2/25/17 at 10:23 pm to ChineseBandit58
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 on 2/25/17 at 10:44 pm to DreauxB2015
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 on 2/25/17 at 10:50 pm to The Balinese Club
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 on 2/25/17 at 10:52 pm to OMLandshark
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 on 2/25/17 at 10:54 pm to Lsuchs
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 on 2/25/17 at 11:11 pm to The Baker
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 on 2/25/17 at 11:21 pm to DavidTheGnome
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 on 2/25/17 at 11:23 pm to goatmilker
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 on 2/25/17 at 11:26 pm to Colonel Flagg
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 on 2/26/17 at 1:29 am to shinerfan
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 on 2/26/17 at 1:34 am to Colonel Flagg
They would have the potential to be overwhelmingly advanced, but space is much too vast for it to really be a threat though.
Posted on 2/26/17 at 3:16 am to ThinePreparedAni
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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