In the early 1960s,physicists named Penzias and Wilson detected a persistent noise at a wavelength of 1 mm in their radio telescope.The persistent noise that Penzias and Wilson detected came from all directions in the sky due to:
A) synchrotron emission from the Crab Nebula.
B) emission from newly formed stars in the Orion Nebula.
C) cell phone usage.
D) photons leftover from the Big Bang.

Question

Quizplus · Accepted Answer

The persistent noise detected by Penzias and Wilson at a wavelength of 1 mm came from all directions in the sky and was found to be the cosmic microwave background radiation (CMB). This radiation is the afterglow of the Big Bang, and it pervades the entire universe. Its detection was instrumental in confirming the Big Bang theory and has led to a better understanding of the origins of the universe.

In the Early 1960s,physicists Named Penzias and Wilson Detected a Persistent