Why did Karl Jansky believe the source of radio static he was detecting in 1932 was NOT from terrestrial sources?
A) In 1932 there were no strong sources of radio waves on Earth.
B) He could detect the signals coming through Earth as well as from the sky.
C) The radio static was most intense when the Sun was high in the sky.
D) The radio static was most intense when the center of our Galaxy was high in the sky.

Question

Quizplus · Accepted Answer

Karl Jansky noticed that the radio static he detected was most intense when the center of our Galaxy was high in the sky. This led him to conclude that the source of the radio waves was extraterrestrial in origin, rather than coming from Earth-based sources.

Why Did Karl Jansky Believe the Source of Radio Static