“This thought came lately into my mind when I watched “our sun” rising beautifully above the horizon.”
#24.11.2017–Our G2 type sun has developed from a nuclear and cosmic cloud approximately 4.6 billion years ago and producing energy at a constant rate since. When the sun was build, so the solar system with eight planets. According a new classification, Pluto didn’t made it, it is now seen as a dwarf planet, meaning he is a little bit too small for a full developed planet. We lost one God. You can find Pluto in the Kuiper belt where he was since ever.
Our sun’s mass is about 332,900 times that of earth; fuses about 600 billion kilograms of Hydrogen each second and is itself located in the outer Milky Way galaxy, which is from a so called barred spiral galaxy type. The nearest neighbor is a star system called Alpha Centaur (famous in S. F. movies) and is only 4.4 light years away.
It is interesting to note that generally, because of the expansion of the Universe, distances to other stars will widening up to the point we won’t see them in the distant future without technical help anymore.
It is getting darker on Earth. On the other hand, the famous Andromeda Galaxy is on direct collision course with our Galaxy and might hit us in a Million years or so. In might effect our solar system or not, nobody can say it yet. The Andromeda Galaxy is know for it appetite to eat smaller satellite galaxies.
Our sun has still a lifetime of 5.5 billion years ahead until it runs out of Hydrogen or will be destroyed by other means. If the normal process continuous, on the end of its life, the sun will become a “Red Giant”, destroying all inner planets.
There is also a hypothesis that a prior supernovae has existed on our suns place but reaching up to perhaps Pluto. Some theorize, that our sun is a child of that Supernovae in the way our moon is part of us; separated by external cosmic events.
Just think about it: A possible sun with a size filling our solar system and when the dying cycle where completed and the prior sun become a supernovae, that remaining gases actually gave birth to our sun and directly or indirectly to us.
But there is more: There might have been a second supernovae playing with our solar system, but only after is was already build. There is a theory that one exploding star 250 light years away might have contributed to the extinction of the mammoth by sending us associated comets (one at least 10-kilometer-wide) to North America. It might happened, during a period of 41,000 until 13,000 years ago.
The universe is volatile, no question that, but it is also the only place where life has been proven to be exist – us!
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