Consider that your average galaxy contains between 100 - 300 billion stars. Multiply that by the 50 billion (approximation) galaxies in the universe and simple statistics shows that other earths are extremely likely if not a sure thing.
My estimate is attributed to other estimates. Our universe has had expanded through 13.8 billion light years in 13.8 billion years. So, I have reference for okaying my estimate.....
When Einstein came up with his revolutionary equation $E=MC^2$ he was stating that energy equals mass as it travels at the speed of light squared. This mean energy and mass...
Not to oversimplify this but the very nature of "theory" means that an absolute proof does not exist. In the case of the development of the early universe, it will...
My reconciliation: Preserving energy, matter might be contracted to mathematical $(0_+) epsilon$-limit and, in the reverse process ( inversion ), the same matter might expand, into more...
This is a question that still lies outside of our knowledge, and may always continue to do so. Physics today can do a creditable job of outline the events that...
was created when elements were made by helium stars. These stars made new elements, and gradually they started being attracted to larger pieces of matter, eventually making the earth.
The acceleration you would experience is: $a=(GM)/r^2$ Where $M=10^11kg$ is the mass of the black hole, $G=6.674m^2kg^(-1)s^(-2)$ is the gravitational constant and $r$ is the distance from the black hole....
