Discovered in 1965, cosmic background radiation supported the big bang theory. true or false

True

Explanation:

The cosmic background radiation is detected to be a remnant of the Big bang. This radiation belongs to the microwave part of the electromagnetic spectrum

According to the big bang theory, universe was very very hot in the beginning and it gradually expanded and cooled. The remains of that radiation is the cosmic radiation which belongs to the electromagnetic spectrum. It is spread out all over the cosmos.

Wilkinson anisotropy probe is used to measure the temperature differences  in the sky at various regions. The radiant heat is a remnant of the big bang

i think it would be 5