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clifff
Mountain climber
golden, rollin hills of California
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Astronomers hatch plan to move Earth's orbit from warming sun
By Dennis Newman
(CNN) -- A group of astronomers has come up with a plan they claim will save life on Earth from an early demise. All it takes, they say, is moving the planet into a different orbit.
http://www.cnn.com/2001/TECH/space/02/05/earth.move/
The same technique could be used to move Venus or Mars into favorable orbits.
Venus could be moved into Earth's orbit. There's plenty of room to avoid interfering with the Earth, for example put it on the other side of the Sun. First put Venus into a highly elliptical orbit outside the planetary plane to avoid interfering with the Earth and to swing it thru the Sun's atmosphere to scour off all the troublesome carbon dioxide. Once the period of Venus is increased to 365 days, work it into Earth's orbit. Then pelt it with comets for enough water and nitrogen to terraform it. Or you might want to mine the CO2 using giant dirigibles, shooting it into a collecting station in geostationary orbit that splits it into carbon and oxygen, keeping the carbon and sending oxygen back to Venus.
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Ward Trotter
Trad climber
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Sign me up if there are plenty of these on Mars:
All the Mars bars you can eat!!!
And look, this is how they dress there:
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High Fructose Corn Spirit
Gym climber
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Mar 10, 2018 - 08:34am PT
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How timely, happening today...
Beyond the Cradle 2018: Envisioning a New Space Age
The entire program is being livestreamed, I will try to watch later.
This is interesting if not silly...
"I encourage everyone to not use the word 'colonialization' when talking about space." -Danielle Wood.
https://www.media.mit.edu/events/beyond-the-cradle-2018/
#SpaceExploration
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Ed Hartouni
Trad climber
Livermore, CA
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Mar 10, 2018 - 09:19am PT
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[Click to View YouTube Video]
so many anachronistic allusions... but you get the idea...
seemed to have had an optimistic time-line in terms of space exploration.
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the Fet
climber
Tu-Tok-A-Nu-La
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Mar 10, 2018 - 09:43pm PT
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^^ Or we're the first.
The universe is 13.7B years old, Earth is 4.5B. Given that there must have been stars that went through at least one entire life cycle to create the complex elements needed for life, and how many things needed to happen to get to "intelligent" life, I wouldn't be surprised if we are the first in our galaxy anyway. And 5,000 years seems short. Humans have been around for 200,000 years and we've only left the planet about 60 years ago. And interstellar distances are vast, it could take 10s of thousands of years to get anywhere.
If, and that's a big if, humanity is around long enough I think we will populate other planets. It will take hundreds of years just to send probes and find other planets with life (I would guess they are out there, and I'd guess simpler life is much more prevalent and "intelligent" life is VERY rare, when you see how close homo sapiens came to extinction your realize how lucky we are to be here). And then I wouldn't be surprised if it will take putting people into suspended animation on a one way trip to other systems. But there are people that will volunteer for that. People will give up their lives on Earth and most everyone they now for the chance to explore and make history.
I don't know what's more daunting, creating a magnetic shield and terraforming Mars, or the vast interstellar distances to get other systems that may have already viable planets.
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Lorenzo
Trad climber
Portland Oregon
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Mar 11, 2018 - 04:00am PT
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It also could be that the window between broadcasting the first I love Lucy show and self distructing is only one or two hundred years...
Maybe .001% of the life span of our species.
That wouldn’t leave much time for a civilization to leave a mark.
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stay norwegian. good boy
climber
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Mar 11, 2018 - 11:26am PT
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we are atoms.
our planet is a cell.
our galaxy is one appendage of a greater body.
our universe is the living organism among a large populace of other living organisms.
inversely, we are a universe.
our cells are planets.
our atoms, inner-mankind.
and each of our atoms
are looking within themselves
and have discovered their own cells,
and those cell's atoms.
which are just down-sized infinities.
only according to our position within relativity
can we estimate god.
infinity extends inward and outward from us
never arriving at a sum of moments.
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Bushman
climber
The state of quantum flux
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Topic Author's Reply - Mar 11, 2018 - 01:25pm PT
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Our Mind is Waiting
Floating isn’t natural
Waiting isn’t normal
I like when things go my way
They often tell me
They never will
Let’s go back
Go back before
Back before something happens
It’s too late now
It always will be
Let's go back to deep space
Back to where we came from
Mars is waiting
Our mind is waiting
If it will
Floating isn’t natural
Waiting isn’t normal
I like when things go my way
They often tell me
They never will
-bushman
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Flip Flop
climber
Earth Planet, Universe
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Mar 11, 2018 - 01:30pm PT
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Norwegian!!! He's Back! Epic. This place just got better
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August West
Trad climber
Where the wind blows strange
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Mar 11, 2018 - 02:02pm PT
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there is a metric which states a spacefairing race should only take about 5000 years to colonize a galaxy
since we find no evidence of gatekeepers here in our own solar system it shows that all the myriad of civilizations which have been born in our galaxy have not survived to do this
the pattern is clear
civilization don't survive long enough to survive...
The 5000 years sounds short and it is not a given that any gatekeepers would automatically let their presence be known.
But from what I have read, simple life probably gets started rather easily and probably exists all over the galaxy. More complex life is another story. Single cell life shows up on earth pretty soon after the planet is cool enough for it to happen. And then life stayed at the level of a single cell for billions of years before multicellular life showed up.
It is probably doubtful that very many planetary systems have stable conditions for that long. For instance, a supernova that was too close by would fry the planet and kill all life off. So it is not surprising that our planet, that hit the complicated life jackpot, is on the outer edge of the galaxy where there are fewer stars and they are further apart.
It is probably really rare for a planet to have such a stable climate for billions and billions years.
So it is not clear whether there has been many civilizations comparable to our own that self-destructed before colonizing the galaxy, or that there have been few to none civilizations before our own.
On the other hand, I don't think our current civilization is very stable. I would say that the chance of our descendants ever making it to another star system is slim to none but that probably overstates our odds.
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Reilly
Mountain climber
The Other Monrovia- CA
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Mar 11, 2018 - 02:07pm PT
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Our space endeavors are merely our pathetic technological variation on a theme of Nero’s fiddling.
Burn, baby, burn!
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StahlBro
Trad climber
San Diego, CA
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Mar 11, 2018 - 02:21pm PT
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We can’t stop screwing this planet. Why would it be different anywhere else?
The only reasonable argument is finding an escape route in case another extinction level asteroid crosses our path.
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Reilly
Mountain climber
The Other Monrovia- CA
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Mar 11, 2018 - 02:30pm PT
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Pretty presumptuous to assume that we deserve to survive after we’ve driven so many other species extinct. Karma’s a bitch! What did a Dodo ever do to you?
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StahlBro
Trad climber
San Diego, CA
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Mar 11, 2018 - 03:15pm PT
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“Deserve’s got nuthin to do with it”
William Munny
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Flip Flop
climber
Earth Planet, Universe
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Mar 11, 2018 - 04:33pm PT
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Much handwringing in the Celestially Obsessed Crowd.
Philosophically speaking, I'd prefer that we master our craft before selling our goods down the river.
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Gnome Ofthe Diabase
climber
Out Of Bed
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Jul 26, 2018 - 08:33am PT
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You all have probably heard about it already: Huge body of water just found on Mars. So I post just for reference to it.
http://www.iflscience.com/space/weve-finally-found-actual-liquid-water-on-mars/
https://www.nytimes.com/2018/07/25/science/mars-liquid-alien-life.html
Amazing. Best venue yet for possible life.
Are we just ONE voice in the cosmic fugue? Or just ONE in our solar system?
Or might there be TWO?
...
"One voice" (Sagan) refers to our (Earth's) unique, singular genetic code.
oh please!
So bogus,,FAKE NEWS
A sonar/radar whateve' 'dar, was used to Not see,
but did give rise to the idea that a mile deep void holds water? something? any sort of anything,
other than a different density.
And
that this, as shown by the system, that is only 70/30
when used on land vs the polar ice off the shore of the known landmass, ensures nothing;
no true "Find" of liquid, just an unexplained reflection that is differing in density from the surrounding rock
but by all means sign up, & go . . . ., trumputin is stealing your grandchildren's future any way
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