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Our Solar system when it was in the middle of a huge star
There is an assumption that all of that created a habitable space in our Solar system was once part of a star, which then exploded. Maybe it was, maybe it was not super new and it did not explode. Maybe it was the star of type wolf-Rayet, who does not oppose this motion in terms of hypotheses and conclusions. Star wolf-Rayet shines extremely stable, and over the surface of a moving hot cloud of gas. Right or not, but such information was published in the Astrophysical Journal. Such conclusions suggest themselves after a study of aluminium-26 in rocks. It is not strange and iron -60 at all. In super new stars such isotopes in excess, they are long-lived and a lot of them. If one isotope in the primary matter is, and the second is not there, then you need to find out why it happened.
Knowing some nestykovochka in this hypothesis, in the minds of other scientists was born the theme with a star of a different type. At some stage all that can be found in the Solar system was just a part of a huge gas nebula. To what was left in the cometary substance and sometimes falling meteorites. What`s that nebula come from There`s so many replies that even they all can not remember
All insights on what it should be based. But the primary matter that you find in our Solar system is very different from that which would be, if everything that surrounds us would have been at some stage part of the nebula that gave rise to the supernova explosion. The presence of these isotopes and the absence of other do not give a chance to this theory. More likely the matter of our Solar system was born in the bowels of stars like wolf-Rayet, it is a very big star, she is in 40 times more mass of the Sun. This type of stars in our galaxy are found now in abundance. The star is so great that can easily spit jets of matter. Part of the matter flies away into space, and part of the fly near the star and affect its luminosity.
Likely version again, the same scientists, in the depths of such big stars can be a big gas bubble from dust and micro particles of matter. Of this capsule will not escape even the type of isotope aluminium-26. Having existed for approximately 6 million star explodes forming a huge dust cloud. In the Central part of this cloud at the first stage has born a new star, it certainly is not too long and not so bright but clearly a star. Apparently this star is our Sun, and the rest of the material was used for the planetary system. Such a hypothesis is in our opinion much more tenacious than all the other options of the past of our Solar System.