2007-05-20 10:30:50 · 9 answers · asked by E 1 in Science & Mathematics ➔ Astronomy & Space
The big bang theory does not actually specify an age for the universe. The figure of 13.7 billion years was determined by observation data provided by the COBE and WMAP satellites, which agree with minimum and maximum values the hot inflationary big bang model would predict for a universe of the estimated size and expansion rate of ours.
2007-05-20 11:02:13 · answer #1 · answered by Anonymous · 2⤊ 0⤋
About 13-16 billion years ago, the universe was a ball of matter, a singularity. Then the big bang occurred and the ball of matter started to expand.
There now exist 4 fundamental forces: weak nuclear forces, strong nuclear forces, electromagnetic forces and gravity.
Within one second of the formation of the universe, substances such as photons, neutrinos and anti-particles form.
Within 3 minutes, the universe cooled enough for heavier particles such as protons and neutrons to form.
Within 100 000 years, electrons are gradually captured by protons and atoms form. At this point, only H(70%) and He(30%) exist.
At this point, the universe consisted of only H and He atoms. These atoms, by gravity, attract and form gas clusters. Eventually, these gas clusters condense more and more by gravitational forces. Proto-galaxies and proto-stars form. The gravitational energy of these particles are converted to thermal/kinetic energy as the gas condenses. Eventually, the temperature reaches a point where fusion can occur. Stars now form.
2007-05-20 17:34:30 · answer #2 · answered by elnegro187_04 2 · 2⤊ 1⤋
They calculated according to Big Bang a time dilation to be 13.8 bllions years.
The Hubble constant indicated 15 Billions years
To our Creator in only took the time to speak it into existance.
And Im not sure what other scientists have determined it to be.
2007-05-20 17:46:11 · answer #3 · answered by goring 6 · 0⤊ 0⤋
14 billion years ago, but the Earths orbit back then wasn't quite the same as it is today, so a year can be radically different and don't ever forget that fact!
2007-05-21 08:54:46 · answer #4 · answered by Anonymous · 1⤊ 0⤋
12 billion
2007-05-20 17:39:27 · answer #5 · answered by ChuckW 1 · 0⤊ 0⤋
There isn't an answer to that because God is the one that created the Earth. THANK U!
2007-05-20 17:34:14 · answer #6 · answered by vgas13 2 · 1⤊ 1⤋
no one knows the answer to that Q. scientist just estimate...doesnt mean its true. God created everything we know of....so neccesarily...he ONLY knows, so far.
2007-05-20 18:58:38 · answer #7 · answered by al_that_2_u 1 · 0⤊ 1⤋
13.8 billion years ago
I think it was a Tuesday.
2007-05-20 17:35:37 · answer #8 · answered by aka DarthDad 5 · 0⤊ 1⤋
13.7 billion
2007-05-20 17:48:49 · answer #9 · answered by Derchin 6 · 0⤊ 0⤋