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So, where did the cosmic microwave background come from?
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Brian Cox: Life Of A Universe

So, where did the cosmic microwavebackground come from?

So, where did the cosmic microwave
background come from?

Full Transcript

00:00:01.000 --> 00:00:04.056
So, where did the cosmic microwave background come from?
Duration
5 seconds
Views
37
Timestamp in Movie
00:08:37
Uploaded
Jul 09, 2025
Season
1
Episode
2
Genres
documentary

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Movie Summary

Professor Brian Cox on tour in Australia talks about the life of our universe to scientists and to space-loving audiences.
S01 • E02 And why do we consider it such strong evidence for the big bang theory? - Brian Cox: Life Of A Universe 00:06
And why do we consider it such strong evidence for the big b...
S01 • E02 So, the picture is this - the universe is expanding and cooling. - Brian Cox: Life Of A Universe 00:05
So, the picture is this - the universe is expanding and cool...
S01 • E02 In the first few minutes, it's extremely hot, - Brian Cox: Life Of A Universe 00:11
In the first few minutes, it's extremely hot,
S01 • E02 380,000 years after the big bang, it's cool enough for atoms to form, - Brian Cox: Life Of A Universe 00:22
380,000 years after the big bang, it's cool enough for ...
S01 • E02 The cosmic microwave background is considered such strong evidence - Brian Cox: Life Of A Universe 00:10
The cosmic microwave background is considered such strong ev...
S01 • E02 It was first observed in the mid-1960s, - Brian Cox: Life Of A Universe 00:14
It was first observed in the mid-1960s,
S01 • E02 It's an almost overwhelming piece of evidence, - Brian Cox: Life Of A Universe 00:08
It's an almost overwhelming piece of evidence,
S01 • E02 We can photograph, essentially, the universe as it was, - Brian Cox: Life Of A Universe 00:11
We can photograph, essentially, the universe as it was,
S01 • E02 This remarkable baby photograph of the universe - Brian Cox: Life Of A Universe 00:07
This remarkable baby photograph of the universe
S01 • E02 But its great detail presented fresh challenges. - Brian Cox: Life Of A Universe 00:05
But its great detail presented fresh challenges.
S01 • E02 As we often find with science, - Brian Cox: Life Of A Universe 00:08
As we often find with science,
S01 • E02 This idea that the universe had a beginning in the big bang - Brian Cox: Life Of A Universe 00:08
This idea that the universe had a beginning in the big bang
S01 • E02 It raises a series of childlike questions. - Brian Cox: Life Of A Universe 00:04
It raises a series of childlike questions.
S01 • E02 Like, if the universe had a beginning, - Brian Cox: Life Of A Universe 00:05
Like, if the universe had a beginning,
S01 • E02 If time emerged at the big bang, then was there a time before time? - Brian Cox: Life Of A Universe 00:06
If time emerged at the big bang, then was there a time befor...
S01 • E02 How can the universe appear spontaneously out of nothing at all? - Brian Cox: Life Of A Universe 00:06
How can the universe appear spontaneously out of nothing at ...
S01 • E02 Well, that is a philosophical question, - Brian Cox: Life Of A Universe 00:09
Well, that is a philosophical question,
S01 • E02 The clues which point the way to a theory - Brian Cox: Life Of A Universe 00:10
The clues which point the way to a theory
S01 • E02 There are two problems with the standard big bang model. - Brian Cox: Life Of A Universe 00:05
There are two problems with the standard big bang model.
S01 • E02 They're called the horizon problem and the flatness problem. - Brian Cox: Life Of A Universe 00:04
They're called the horizon problem and the flatness pro...