GK
BIG BANG THEORY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
All the stars, galaxies, and planets that exist today were formed just a few moments after the Big Bang.
|
|
|
The universe back then could not sustain life, and it cannot sustain life now.
|
|
|
The universe was extremely hot then, and it is still extremely hot now.
|
|
|
The universe began expanding then, and it is still expanding today.
|
Detailed explanation-1: -What do the initial moments after the Big Bang have in common with the universe as it exists now? a. All the stars, galaxies, and planets that exist today were formed just a few moments after the Big Bang.
Detailed explanation-2: -The Era of Recombination Until around a few hundred million years or so after the Big Bang, the universe was a very dark place. There were no stars, and there were no galaxies. After the Big Bang, the universe was like a hot soup of particles (i.e. protons, neutrons, and electrons).
Detailed explanation-3: -Based on large quantities of experimental observation and theoretical work, the scientific consensus is that space itself is expanding, and that it expanded very rapidly within the first fraction of a second after the Big Bang, approximately 13.8 billion years ago.