GENERAL KNOWLEDGE

GK

SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many galaxies are there?
A
One
B
Two
C
Millions
D
Billions
Explanation: 

Detailed explanation-1: -This tiny patch of sky was full of galaxies, almost 10, 000, of all different sizes and shapes. By multiplying this number by the number of times this tiny patch of sky would fit into the entire sky, astronomers came up with an estimate of between about 100 and 200 billion galaxies.

Detailed explanation-2: -The Hubble Deep Field, an extremely long exposure of a relatively empty part of the sky, provided evidence that there are about 125 billion (1.25×1011) galaxies in the observable universe.

Detailed explanation-3: -There are around fifty galaxies in the Milky Way, the largest of which is the Large Magellanic Cloud.

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