What is cosmic microwave background radiation?
Cosmic microwave background (CMB) radiation is electromagnetic radiation that is a remnant from the early universe. It is believed to be the oldest light in the universe, dating back to about 380,000 years after the Big Bang. The radiation has a black body spectrum corresponding to a temperature of about 2.73 Kelvin, making it the coolest radiation in the universe. The CMB radiation provides a glimpse into the early universe and has been instrumental in the development of the Big Bang theory of cosmology.
The CMB radiation was first discovered in 1965 by Arno Penzias and Robert Wilson. They were studying radio waves from the Milky Way galaxy, but found a persistent background noise that they could not account for. After ruling out all possible sources of interference, they realized that they had discovered the cosmic microwave background radiation.
- What Is The Role Of Human Rights In Shaping Geopolitical Alliances And Conflicts
- What Are The Benefits Of Foam Rolling
- As An International Student How Do I Apply For An Undergraduate Degree At Oxford University
- What Country Hosted The 2018 Fifa World Cup
- What Are The Health Benefits Of Eating A Variety Of Cruciferous Vegetables Like Kale And Brussels Sprouts
- What Is Color And How Is It Related To The Electromagnetic Spectrum
- What Are The Best Computer Accessories To Enhance Productivity
- What Is Net Neutrality And How Does It Affect My Internet Access
- What Is The Abel Tasman Coast Track And Why Is It Significant
- What Are The Best Ways To Build An Emergency Fund