The new findings from the JWST telescope suggests us that life could begin earlier than previously thought.
The new findings from the JWST telescope suggests us that life could begin earlier than previously thought.
"Recent findings from the James Webb Space Telescope reveal that oxygen was abundant in the early Universe, suggesting that life’s essential elements were present much earlier than previously thought." (ScitechDaily,New Findings From the James Webb Telescope Suggests That Life Could Have Existed Much Earlier Than Previously Thought)
The life in the universe as we know it requires oxygen. Oxygen production is a vital element for life. And the thing that oxygen production on the micro level. The term micro-level means planetary scale in this text.
That there is oxygen in the universe. Only two elements existed in the young universe, hydrogen and later helium. First stars formed from pure hydrogen, and helium formed in their nuclear reactions. Then later stars formed heavier elements iron, phosphorus, and oxygen. For lifeforms, oxygen is vital, as I wrote before.
Oxygen is quite a common element in the universe. Water and many other compounds involve oxygen. Water is another vital thing for life. But there is needed oxygen in the universe that can form water. As we know, oxygen is a chemical compound of oxygen and hydrogen.
The shockwaves from supernovas can form water in interplanetary nebulas when they drive water and hydrogen atoms together.
Researchers are trying to find out the source of water on Earth. Two possibilities can explain water. The first one was that there was lots of hydrogen in young Earth's atmosphere. Then some kind of chemical or physical reaction caused great flame that formed water in Earth's atmosphere.
Or water comes from some other place in the universe. In some models, the supernova explosions can form water in molecular clouds. When a shockwave from a supernova explosion hits interplanetary nebulas, it can push oxygen and hydrogen atoms together, forming enormous water mass.
"JWST infrared images of 6 galaxies from 500-700 million years after the birth of the Universe. All 6 have low oxygen abundances compared to modern galaxies. Credit: NASA, ESA, CSA, K. Nakajima et al." (ScitechDaily,New Findings From the James Webb Telescope Suggests That Life Could Have Existed Much Earlier Than Previously Thought)
Short-period lifeforms can form on red giant's planets.
It's possible, that some primitive lifeforms can form on red giant's planets before the star detonates as a supernova or nova. When a star expands it changes far, before icy planets to habitable. That is a very short period for those planets. The Nova explosion will destroy those planets quite soon.
And that means, that those lifeforms are short-term, and they will not reach even the eucaryotic state. The red giant detonates as nova or supernova quite soon. And that detonation destroys those planets immediately.
Also, destroyed water planets can send ice asteroids around the universe. When a water planet's sun detonates as a nova or supernova, that eruption can send water around the universe. That blast destroys the entire planet in a couple of seconds. And maybe some of those asteroids arrive in the young solar systems. It's possible. That some primitive bacteria can survive in those freezing water ice bites.
This model goes like this. All stars, including red giants, have a life circle. When a star starts to grow into a red giant, it pushes a life circle where liquid water is possible farther. That means the previously icy worlds can turn habitable.
The red giant is a very short-term star. And there is no time for advanced lifeforms can form. But on those planets might have a time when primitive lifeforms like prokaryotes can form. The red giant will destroy those planets quite soon. But it's possible. That those very primitive bacteria or amino acids can travel to another solar system.
https://scitechdaily.com/new-findings-from-the-james-webb-telescope-suggests-that-life-could-have-existed-much-earlier-than-previously-thought/
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