Cosmologic philosophy: more evidence of Big Bang (Introduction)

by David Turell , Wednesday, April 17, 2019, 20:19 (2047 days ago) @ David Turell

Hydrogen helium hydride found, as theorized:

https://www.theguardian.com/science/2019/apr/17/helium-hydride-most-ancient-molecule-in...

"The most ancient type of molecule in our universe has been detected in space, scientists have revealed, backing up theories of how the early chemistry of the universe developed after the big bang.

"The positively charged molecule known as helium hydride is believed to have played a starring role in the early universe, forming when a helium atom shared its electrons with a hydrogen nucleus, or proton. Not only is it thought to be the first molecular bond, and first chemical compound, to have appeared as the universe cooled after the big bang, but it also opened up the path to the formation of molecules of hydrogen.

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“'Although [helium hydride] is of limited importance on Earth today, the chemistry of the universe began with this ion,” the authors write. “The lack of definitive evidence for its very existence in interstellar space has been a dilemma for astronomy.”

"Now experts say they have finally spotted helium hydride in a small but bright 600-year-old planetary nebula about 3,000 light years away in the constellation of Cygnus. While this helium hydride was formed by a different process to that in the early universe, the team say its presence backs up theories of what was going on at the “dawn of chemistry”, bringing a “decades-long search to a happy ending at last”.

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“'Another reason it is exciting is that HeH+ [helium hydride] is the first molecule ever to form in the universe, about 380,000 years after the big bang, in an era known as the recombination epoch,” said Loreau, adding that molecules that appeared in this period, as the universe cooled, later led to the formation of stars and galaxies. “It is therefore very exciting to have finally observed one of the building blocks of the molecular universe.'”

Comment: At first the heat of the Big Bang didn't allow the formation of atoms and molecules to explain the 'recombination epoch' comment. More proof of the Big Bang theory.