Answer :
Astronomers use telescopes mounted on satellites to examine cosmic microwaves since much of the light inside the microwave band is blocked by the Earth's atmosphere.
Why is it useful to know about the cosmic microwave background?
The CMB, also known as the cosmic microwave background, is the name given to this light, which contains knowledge about the very early cosmos. Astronomers utilize the patterns in CMB radiation to estimate the size of the universe, comprehend the formation of galaxies, and search for evidence of the immediate aftermath of the Big Bang.
What makes it a cosmic microwave?
The Big Bang, or the moment when the universe first began, left behind radiation known as that of the cosmic microwave background (CMB). According to theory, the cosmos experienced a quick birth, inflation, expansion, and cooling.
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