Posted on 08/15/2020 7:51:17 AM PDT by MtnClimber
Explanation: The hydrogen in your body, present in every molecule of water, came from the Big Bang. There are no other appreciable sources of hydrogen in the universe. The carbon in your body was made by nuclear fusion in the interior of stars, as was the oxygen. Much of the iron in your body was made during supernovas of stars that occurred long ago and far away. The gold in your jewelry was likely made from neutron stars during collisions that may have been visible as short-duration gamma-ray bursts or gravitational wave events. Elements like phosphorus and copper are present in our bodies in only small amounts but are essential to the functioning of all known life. The featured periodic table is color coded to indicate humanity's best guess as to the nuclear origin of all known elements. The sites of nuclear creation of some elements, such as copper, are not really well known and are continuing topics of observational and computational research.
(Excerpt) Read more at apod.nasa.gov ...
“Except for about 10% of us which is hydrogen.”
What are the percentages for coffee and chocolate? ;)
Please add me to your NASA/APOD/Astronomy ping list.
Betelgeuse is 642 light years distant from Earth. I also think it would be interesting to see it go bang!
Who was quoting Carl Sagan.
10% by weight, not number of atoms. Hydrogen is the lightest element, only 1/16th the weight of oxygen.
They babble on, and I’m not buying it. Please explain to me how there were no elements, just a large mass of assorted protons, neutrons, electrons and all the other little spinning things, and then some force grabbed them and sorted them out neatly into protons + neutrons, with them little electrons spinning in neat orbits around the nucleus, and voila created the elements.
And he did an excellent job with the exception of mosquitoes, black flies, poisonous snakes and Murder Hornets! ;)
All are daughter products from natural radioactive decay.
Some (2 or 3) because of their half lives are almost non-existent naturally. However the decay physics says they were there as an intermediate step in the decay process. Those mostly have been lab produced to be “discovered”.
Where did the stars come from?
I am not sure any human will understand it all.
Just think, when Betelgeuse does go supernova, we'll have two nebulas (nebulae?) to look at in the Orion Constellation: star-forming Orion and "planetary" Betelgeuse.
Interesting...Krypton comes from exploding stars.
Stars are made primarily of hydrogen and helium which were already in the universe before the first stars formed. Heavier elements make up less than 1% of the universe, and were made in stars, or by the explosion of stars, collisions of stars, etc.
“Why is there something rather than nothing?”
Need to look at the big picture. The sum of everything is nothing.
Sorry but your post has several errors and misconceptions. Most hydrogen on earth indeed consists of a single proton and a single electron, not two. Two electrons would make hydrogen atoms negatively charged rather than neutral.
You are also confounding three different concepts: elemental hydrogen, atomic hydrogen, and molecular hydrogen. Most hydrogen on earth is atomic hydrogen, namely the hydrogen bound to other elements. The primary other element on earth is oxygen, and mostly atomic hydrogen on earth is found in water. Some also is bound to carbon or nitrogen, forming ammonia or hydrocarbons.
Hydrogen also binds to itself, forming hydrogen gas. This is molecular hydrogen, which is fairly uncommon on earth since it has molecular speed distributions with most molecules moving faster than escape velocity. Atomic hydrogen is one proton plus one electron, molecular hydrogen is two such atoms bound together.
This article is referring to the elemental hydrogen. This type of hydrogen is the most common component of the current universe. It was also the form of hydrogen synthesized in the Big Bang. This hydrogen consists of a single proton and a single electron, but they are not bound together. The technical term is plasma.
This article is referring primarily to nuclear origins anyway. A hydrogen nucleus IS a proton. If protons were formed in the Big Bang, so were hydrogen nuclei; they are one and the same. BTW, I’m not sure why you were referring to photons; those are light particles and have nothing to do with hydrogen.
And, WHY was there only ONE Big Bang?
Very cool. Thanks for posting.
*another APOD ping*
By the second one, you tend to get jelly legs.
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