With Andromeda and Triangulum galaxies slowly (relatively) approaching us and colliding within 4.5 Billion years due to Doppler Shift, shouldn't we be broadcasting to the universe an "SOS" message so that our species can survive? Due to the slow RF velocity in space, I believe we should be broadcasting a distress signal now so that the rescue party will have ample time to make preparation of rescuing most of the life found on this planet.
Maybe this discovery of "all" discoveries is the reason why human technologies evolved, since Galileo changes in Astronomy and the first flight of the Wright Brothers in Kitty Hawk North Carolina.

I think the Sun will become a red giant before, so there is no reason to worry. Like Spaniards say:Si hay remedio, porque se preocupe? E si no hay remedio, porque se preocupe?
Tullio

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As tullio noted, Sol will be an old star by then and burning hot enough to make life on Earth impossible anyway.

Besides, as I understand it, the collision of galaxies really doesn't have much of an effect on individual star systems. Space is pretty big and the chances of two stars colliding or similar disasters happening are small.

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Pure mathematics is, in its way, the poetry of logical ideas.

Albert Einstein

I wish mass press would stop calling this event collision, crash, destruction, etc... They really like to spin everything into some kind of doomsday scenario. 2012, 2013, 4500000000... :rollseyes:

It is a merger and it is a positive thing - gases will mix so that new stars could be born again. This will only prolong life of both galaxies.

Also, Earth will be gone loooong before that, and human species way way WAY before that, too.
These events take place over such incomprehensible time spans that serveral intelligent species could evolve from goo and get extinct while merging galaxies would make a couple of spins at best.

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Yes, I've read two articles in Scientific American (May 23 and 25) which say that we are doomed in a short time. One of them refers to a book by Dennis Meadows, "The limits to growth", which I edited at Mondadori Publishing House in 1972 and was largely forgotten up to a few years ago. The second refers to a drastic climate change (a tipping point) which could happen any day. I don't think Scientific American is an antiscientific magazine.
Tullio

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T.

Don't forget Paul Ehrlich's prognostications in the late 60's. The Population Bomb.

I wrote a term paper refuting his rants for a course in Scientific Management/Dynamic Programming at the University of Illinois some 40+ years ago.

I really never understood Dynamic Programming. But at that time my computer science knowledge was zero.I started learning something in 1979 at Elsag in Genoa and then at SGS (now STMicroelectronics) at Agrate Brianza in 1981 and then in Honeywell-Bull from 1985 to 1994. But I am still learning.
Tullio

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As has been mentioned, this "collision" won't be happening for so long, it doesn't matter for earth. Our sun will be dying, our species will be long gone from Earth, and Earth itself probably wont exist at that point.

It's matters nothing to us, basically.

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#resist

As has been mentioned, this "collision" won't be happening for so long, it doesn't matter for earth. Our sun will be dying, our species will be long gone from Earth, and Earth itself probably wont exist at that point.

It's matters nothing to us, basically.

I strongly suspect that by then man/woman would have become extinct anyway.

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The Kite Fliers

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Kite fliers: An imaginary club of solo members, those who don't yet
belong to a formal team so "fly their own kites" - as the saying goes.

T.

Don't forget Paul Ehrlich's prognostications in the late 60's. The Population Bomb.

I wrote a term paper refuting his rants for a course in Scientific Management/Dynamic Programming at the University of Illinois some 40+ years ago.

True, Ehrlich was an alarmist like some that are around today. But he did identify a situation that may be a significant part of the problem we are facing today. I'm talking about overpopulation and the effects it has on the environment. I'm guessing that very soon the earth will start fighting back and provide it's own version of birth control with or without our consent.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

At Mondadori we used to publish the books originating from a Think Tank called "The Club of Rome", with Aurelio Peccei as a president. We started with "The limits to growth" by Dennis Meadows and published several others. One of my favorites is "Beyond the age of waste", by Dennis Gabor, Nobel Prize winner, and Umberto Colombo. We also published "The limits to world population", by Lester Brown. Now all this is mainly forgotten, only Scientific American cited "The Limits to growth" in a recent article.
Tullio

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T.

Don't forget Paul Ehrlich's prognostications in the late 60's. The Population Bomb.

I wrote a term paper refuting his rants for a course in Scientific Management/Dynamic Programming at the University of Illinois some 40+ years ago.

True, Ehrlich was an alarmist like some that are around today. But he did identify a situation that may be a significant part of the problem we are facing today. I'm talking about overpopulation and the effects it has on the environment. I'm guessing that very soon the earth will start fighting back and provide it's own version of birth control with or without our consent.

Nature does seem to intervene in these maters so I wounder what surprise she
has installed for us. Providing all goes well for us on the planet here, Bob;
then by the next 100 years we should see much evidence in serious efforts being
undertaken to control world population levels. Advances in technology will
start to seriously undermine the need of man to carry out many-many manual
functions that are considered quite normal still today. In time ahead, as a
necessary productive worker, man will start to become redundant. Here then
starts the next logical move in reducing the human presence on the planet.
Reduced to levels more sustainable by planetary resources and to this end you
might find you only ever have to work one week in each month. Clearly, by
early next century people will look back at us and think. "What poor old
slaves they were"....but that's progress for you.

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The Kite Fliers

--------------------
Kite fliers: An imaginary club of solo members, those who don't yet
belong to a formal team so "fly their own kites" - as the saying goes.

Before any star collision happening in the next 1 billion years there is earth's air will evaporate so that is more preceding natural event I guess. So if during dinosaurs extinction all our mammals species were smaller than rabbit 70 million years ago then in the next 100 million years after mammals there are some other beings might dominate the earth likely some insects.

For humans survival of longer term strategy I highly doubt about current kind of religions and scientific approaches useful rather destructive as historic records reveal. But as intelligence possibilities show there are ways that maybe intelligence might survive from one star to another star something unknown intelligence level might possess.

Out of these layers only bottom 3-4km of air type is supporting maybe 99.98% of life.

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Mandtugai!

Before any star collision happening in the next 1 billion years there is earth's air will evaporate so that is more preceding natural event I guess. So if during dinosaurs extinction all our mammals species were smaller than rabbit 70 million years ago then in the next 100 million years after mammals there are some other beings might dominate the earth likely some insects.

For humans survival of longer term strategy I highly doubt about current kind of religions and scientific approaches useful rather destructive as historic records reveal. But as intelligence possibilities show there are ways that maybe intelligence might survive from one star to another star something unknown intelligence level might possess.

Purely by it's make up the universe possesses natural intelligence, there are
scientific topics on the web that do a good job at explaining this.
By the time man meets his demise on this planet he would already have spent
hundreds of years sending out modules containing basic rudimentary life forms
searching for the appropriate planet to land on whence it will spill out it's
contents and hope new life will evolve there. Mans not finished, mans only
just begun, Earth could be the source from where all human life evolved from
through out the universe in time. Yet, on the other hand, may be this is how
we came about here on this planet just a few blobs of glug dropped down here
from an alien spacecraft many moons ago.

---

The Kite Fliers

--------------------
Kite fliers: An imaginary club of solo members, those who don't yet
belong to a formal team so "fly their own kites" - as the saying goes.

Before any star collision happening in the next 1 billion years there is earth's air will evaporate so that is more preceding natural event I guess. So if during dinosaurs extinction all our mammals species were smaller than rabbit 70 million years ago then in the next 100 million years after mammals there are some other beings might dominate the earth likely some insects.

For humans survival of longer term strategy I highly doubt about current kind of religions and scientific approaches useful rather destructive as historic records reveal. But as intelligence possibilities show there are ways that maybe intelligence might survive from one star to another star something unknown intelligence level might possess.

Purely by it's make up the universe possesses natural intelligence, there are
scientific topics on the web that do a good job at explaining this.
By the time man meets his demise on this planet he would already have spent
hundreds of years sending out modules containing basic rudimentary life forms
searching for the appropriate planet to land on whence it will spill out it's
contents and hope new life will evolve there. Mans not finished, mans only
just begun, Earth could be the source from where all human life evolved from
through out the universe in time. Yet, on the other hand, may be this is how
we came about here on this planet just a few blobs of glug dropped down here
from an alien spacecraft many moons ago.

Yes I agree that man is very fresh species on the planet compare to mosquitos survival of 150 million years kicking strong. So maybe intelligence phenomenon is just starting on the planet or so.

And since evolution theory suggests that mammals species is one of most vulnerable life type I cannot limit intelligence source by mammal types like humans. Because possibly current air and water chemistry type giving a chance to dominate on this planet there is no guarantee that in 5-10 million years the air&water chemistry will be same considering 70 million years ago mammals were mini and dinos were the owners of the real estate and most importantly the air chemistry was very different so likely was the water chemistry.

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Mandtugai!