GK
THE UNIVERSE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The universe started about 13, 000 years ago
|
|
|
The universe started about 13 billion years ago
|
|
|
The universe started about 14 billion years ago
|
|
|
The universe started about 13.75 billion years ago
|
|
|
The universe started about 13.7 billion years ago
|
Detailed explanation-1: -The Big Bang theory says that the universe came into being from a single, unimaginably hot and dense point (aka, a singularity ) more than 13 billion years ago. It didn’t occur in an already existing space. Rather, it initiated the expansion-and cooling-of space itself.
Detailed explanation-2: -Measurements made by NASA’s WMAP spacecraft have shown that the universe is 13.7 billion years old, plus or minus about 130, 000 years.
Detailed explanation-3: -The scientists studied an image of the oldest light in the universe to confirm its age of 13.8 billion years. This light, the “afterglow” of the Big Bang, is known as the cosmic microwave background and marks a time 380, 000 years after the universe’s birth when protons and electrons joined to form the first atoms.