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.
NASA's Cosmic Background Explorer (COBE): science.nasa.g...
NASA's Wilkinson Microwave Anisotropy Probe: map.gsfc.nasa....
ESA's Planck Mission: www.esa.int/Ou...

[@JasonKendallAstronomer]

Please see the remastered version of this video here: ua-cam.com/play/PLyu4Fovbph6dSGHJOP3o171TON6rLyN6w.html

[@sciencerizz]

This dude should be getting way more views and thumb ups , Thanks man

[@JasonKendallAstronomer]

I appreciate that!

[@mountainman8775]

Important presentation on a very important topic... this really helped me

[@roberttatum2826]

one of the greatest presentation on this subject

[@JasonKendallAstronomer]

Thanks! Now my head is going to be very big....

[@jimyguitar3177]

There currently could be a earth like planet with intelligent life 25 billion light years from us. They would detect the CMB 13.7 billion years in the past also.

[@roberttatum2826]

great,great,great explanation!!! (obsolutely comprehensive)

[@nenadpopovic1710]

Wow. Amazing explanation. What about Axes of evil anomaly? Have you video about that topic?

[@JasonKendallAstronomer]

Thanks for the compliment. I haven’t yet put together a video on that topic.

[@dearheart2]

I agree, the name "recombination" is misleading in a historic context. Combination....

[@johnmann4369]

Question on CMB: I appreciate that the statistical appearance of the CMB would be the same from wherever viewed in the universe, but would the actual pattern of fluctuations be position dependent (position on a universe scale rather than solar system)?
Ta.

[@enigman44]

Perhaps someone can answer this question. To achieve this map of the cosmic background radiation, the relative motions of the satellite around the earth, the earth's motion around the sun, the sun's orbit within the galaxy, all had to be cancelled out. My question is, why can't you use this background as an absolute state of rest and determine the solar systems movement thru the cosmos? The Doppler shift alone can give you an overall velocity and vector! Why has nobody done this? If it is impossible, then can you explain why?

[@spellucci]

It looks to me like the middle picture on the slide at 21:14 shows exactly what I understand you are referring to: the red shift in one direction and blue shift in the other as a result of our movement through the cosmos.

[@calebpoemoceah3087]

Could the big bang have come frome the future

[@MinorScalesMajorFuckups]

sure man, whatever