GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An astronomer is looking at a recent picture of space, that was taken by the Hubble Space Telescope. He describes the image by saying that it has a collection of many billions of stars bound together by gravitational attraction. What is the astronomer mostly like seeing in the picture?
A
moon
B
galaxy
C
planets
D
solar system
Explanation: 

Detailed explanation-1: -In 1929, Edwin Hubble provided the first observational evidence for the universe having a finite age. Using the largest telescope of the time, he discovered that the more distant a galaxy is from us, the faster it appears to be receding into space. This means that the universe is expanding uniformly in all directions.

Detailed explanation-2: -Andromeda is the closest big galaxy to the Milky Way and is expected to collide with the Milky Way around 4.5 billion years from now. The two will eventually merge into a single new galaxy called Milkdromeda. Appearance is similar to an insect’s antennae.

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