@mbersiam@mike808@werehatrack I don’t think you all remember the bizarro universe that yahoo answers was. If anything the question in this thread is too grounded in reality (and too well articulated) for yahoo answers.
13.74 billion years ago for the Universe. Earth is much more recent only 4.545 billion years.
If you really want to understand all of this, take a course or read a good book on cosmology, such as
“An Introduction to Modern Cosmology,” 3rd Edition by Andrew Liddle.
It will blow your socks off.
When you do, you may realize that we are an infinitely small speck in the cosmos, which is a truly incomprehensibly violent place in terms of energy.
We exist in a so-called Goldilocks zone, where there is liquid water, moderate temperatures, a shielding planetary magnetic field (from chemical bond breaking high energy particles and cosmic rays).
This is not fantasy or some trumped up religious dogma, but hard, verifiable, vetted fact based on observable and measured data.
A significant portion of the hydrogen atoms in your body were created as a result of the Big Bang, or the beginning of the Universe along with some of the deuterium (naturally occurring “heavy” hydrogen, i.e., hydrogen with a neutron) in your body as a result of the big bang. Read all about it as those first moments are described in detail.
You may need more socks as you digest some of the enormity of the data and its implications.