Summary
In March astronomers in the BICEP2 collaboration announced they had found gravitational waves from the Big Bang. But now the evidence is being questioned by other scientists.
Dr Lucie Green reports on the debate and asks if scientists can ever know what happened billions of years ago when the universe was formed.
Image copyright: Steffen Richter, Harvard University
Transcript
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| 0:00.0 | Just before this BBC podcast gets underway, here's something you may not know. |
| 0:04.7 | My name's Linda Davies and I Commission Podcasts for BBC Sounds. |
| 0:08.5 | As you'd expect, at the BBC we make podcasts of the very highest quality featuring the most knowledgeable experts and genuinely engaging voices. |
| 0:18.0 | What you may not know is that the BBC makes podcasts about all kinds of things like pop stars, |
| 0:24.6 | poltergeist, cricket, and conspiracy theories and that's just a few examples. |
| 0:29.7 | If you'd like to discover something a little bit unexpected, find your next podcast over at BBC |
| 0:35.4 | Sounds. |
| 0:36.4 | Just before this BBC podcast gets underway, here's something you may not know. |
| 0:40.9 | My name's Linda Davies and I commissioned |
| 0:43.0 | podcast for BBC Sounds. |
| 0:45.0 | As you'd expect, at the BBC we make podcasts of the very highest quality, |
| 0:49.0 | featuring the most knowledgeable experts and genuinely engaging voices. |
| 0:54.4 | What you may not know is that the BBC makes podcasts about all kinds of things like pop stars, |
| 1:00.9 | poltergeist, cricket, and conspiracy theories. |
| 1:04.4 | And that's just a few examples. |
| 1:06.3 | If you'd like to discover something a little bit unexpected, |
| 1:09.4 | find your next podcast over at BBC Sounds. |
| 1:15.0 | Thank you for downloading from the BBC. |
| 1:20.0 | For details of our complete range of podcasts and our terms of use, go to BBCworldservice.com slash podcasts. |
| 1:24.0 | On March 17th this year, an exciting new discovery was announced, |
| 1:30.0 | arguably comparable to that of the Higgs boson. |
| 1:33.0 | Predicted by modern physics theories, |
... |
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