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Frontiers
21:00 - 21:30
Sue Nelson joins scientists down a mine on their search for the elusive dark matter.
Coming up at: 21:30
BBC Radio 4
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Mike Thomson investigates Britain's role during the 1970 coup in oil-rich Oman.
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The Conservative Party is facing a leadership challenge.
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Leading British politicians tell Anne McElvoy how the 1989 revolutions have shaped them.
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1/5 . The Festival of Britain heralds the beginning of the end of austerity.
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Available since today with 6 days left .
Bulgaria witnesses its biggest demonstrations in 40 years; Lebanon's president is killed.
94 more programmes available now . For more, try the A to Z .
28 more programmes coming up in the next 7 days.
Find other BBC programmes in the category 'Factual: History'.
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