The Cosmic Microwave Background

The discovery of the Cosmic Microwave Background is regarded as one of the most important of all science, as it is relic radiation from its early hot, dense epochs. We see that it was a key prediction of the Big Bang, which was discovered by accident by Penzias and Wilson. By studying the microwave sky in detail, the COBE, WMAP and Planck probes of NASA and ESA have shown us that the CMB is a perfect blackbody, meaning it’s all at the same temperature, 2.7 Kelvin. When we study the tiny fluctuations and anisotropies away from this near-perfect spectrum, we find that we can learn what the universe was like when it was roughly 350,000 years old. We learn the conditions that created the CMB, as we watch atoms combine together for the first time, letting light slip free to come to us 13.6 billion years later. This observation alone is proof of the Big Bang. This is part of my complete intro Astronomy class that I taught at Willam Paterson University and CUNY Hunter.
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NASA's Cosmic Background Explorer (COBE): science.nasa.gov/missions/cobe
NASA's Wilkinson Microwave Anisotropy Probe: map.gsfc.nasa.gov/universe/
ESA's Planck Mission: www.esa.int/Our_Activities/Sp...

[@potato-ld1uj]

It might sound weird but I like to fall asleep to your voice/videos, you ever think about starting a channel where you tell stories. Maybe cosmo based?

[@docsprock7541]

Try John Michael godier (event horizon) Im from London and he is like an American sir David Attenborough...... Many many people love falling asleep to his UA-cam videos and he is aware and proud if it... What a geezer 👌👌

[@gtrob1]

First and wish my sleepy brain could grasp this entire series to the fullest.
Thanks!

[@sonarbangla8711]

Why we can't read the data from the RMB, why are the information difficult to read the sequence of events of the big bang?

[@martinnyberg71]

44:08 So…🤔 How often do we have to re-do the whole measurement to see the red and blue bits change into blue and red and back again? Or, stated another way, how often do we need to measure to get a 3D-ish picture of these regions of resonance? And would that be useful data? 🙂

[@DrDeuteron]

Great video. Technically solid, good history, animations on point.

[@JasonKendallAstronomer]

Glad you enjoyed it!

[@docsprock7541]

Remember they tried (apparently 😂) to dispose of the pigeons humanely but ultimately had to bring in a rifleman..... Poor pigeons lol 🐰🐰🐰

[@just_one_opinion]

Super

[@JasonKendallAstronomer]

Thanks!