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Seven things everyone wants to know about the Universe

One in nine women will get breast cancer in her lifetime, and it seems sensible to screen women for breast cancer to treat them as early as possible. But, as David Spiegelhalter explains, screening is a controversial issue.

In these days of debates on climate change we're often reminded of that other great clash between science and authority, the staunch refusal by the Catholic church to accept that the Earth moves around the Sun.
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