Secrets of the Cosmic Microwave Background - YouTube - PBS Space Time - astrophysics

with Dr.Matt O'Dowd,PhD (astrophysics),writer and host of PBS Space Time*The universe is flat.The era of radiation following the Big Bang evolved to the era of dark matter and dark energy.*CMB was discovered by Arno Penzias and Robert Wilson in 1965.They were working for Bell Labs in New Jersey and stumbled upon this discovery while trying to eliminate noise from their radio telescope.Their finding provided strong evidence for the Big Bang and earned them the Nobel Prize in Physics in 1978.