This thing is -270°C and is EVERYWHERE

Who were the astronomers that discovered the Cosmic Microwave Background?

• Stephen Hawking and Roger Penrose

• Isaac Newton and Albert Einstein

• Robert Wilson and Arno Penzias

• Galileo Galilei and Johannes Kepler

What Nobel Prize did Wilson and Penzias win for their discovery of the CMB?

• Nobel Prize in Literature

• Nobel Prize in Medicine

• Nobel Prize in Physics

• Nobel Prize in Chemistry

What type of radiation is the Cosmic Microwave Background?

• Microwave electromagnetic radiation

• Gamma rays

• Radio waves

• Ultraviolet radiation

What does the uniformity of the CMB tell us about the early universe?

• It was dominated by black holes

• It consisted mainly of dark energy

• It was mostly empty and cold

• It was very dense and hot