Cynics Blog Post
Our solar system has been traveling through what is termed the "Local Interstellar Cloud" for about the past 40,000 years, evidently getting to a region of that cloud with a more consistent density (called “Local Fluff”) about 5300 years ago - notably the dawn of civilization. The atoms and molecules making up this cloud are highly magnetized, thus interacting with the magnetic properties of the earth, sun, and other magnetic-core planets. Estimates about when we’ll exit this cloud vary from a mere 2 decades to around 14,000 years to 150,000 years.
We’ve passed through these before. 40,000 years ago, when we entered this cloud, saw the emergence of humans using simple tools - arrowheads, sewing needles, and the like. 5300 years ago when we reached a more consistently dense part of this cloud, we saw an emergence of human civilization.
What happens when we leave this area of intergallactic space? Superwaves! They come in various degrees of intensity. Well, for one thing, as there is less “fluff” between the earth and the sun, the temperature rises a few degrees. That’s on top of the ~6.4-9.5 C global temperature rise already set up. That is certain doom for humanity. Then, add to that the extra cosmic rays which come along with superwaves, Another effect of getting out of this highly-magnitized cloud will be to expand the heliosphere, which has been shrinking.
Meanwhile, our solar system and earth is expected to enter another (or additional) intergallactic cloud which is made up of MUCH HOTTER gasses - about 1 million degrees Kelvin, in about another 100 years. This cloud is 1000 times more dense than the local interstellar cloud, with different atoms and molecules - in short it has much different properties than the local area cloud, although it also has magnetic properties. This could heat our world much faster.
I would point out though that temperatures in outer space which are incredibly hot do not contain that much energy to heat familiar objects because atoms in space are sufficiently sparse.
The presence of more and different ”space dust” at the top of our atmosphere will eat away at the exosphere, then the other layers of atmosphere, effectively ”eating away” the oxygen in the high atmosphere, including ozone layer, and eventually the troposphere.
The item I’ve taken away from this is that intergalactic materials are setting up to increase global temperature rise even hotter, as well as make our electronics useless, and create more birth defects - along side creating faster evolution throughout the biosphere. Just after that, there will likely be a real problem with the atmosphere staying “glued” to the planet. What can we do about it? Nothing. There is not time to develop any sort of colony in deep space away from this cloud. Life, of some kind, will no doubt continue on earth. Plan that any descendants you have alive in 100 years will likely meet their end with the dense intergalactic cloud. It’s time to leave the life that will be here - as the increased cosmic rays occurring between clouds will greatly speed-up evolution - a planet which they can live on.
For further reading:
Confirmation of the Superwave Theory in Seyfert Galaxy IRAS17020+4544\ Ribbon at edge of our solar system: Will the Sun enter a million-degree cloud of interstellar gas?How a Cloud of Space Dust Could Wipe Out Life on Earth
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