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We wouldn't be here if it hadn't been for red-hot rock sprayed into space during the birth of the Solar System, a controversial new theory claims. Hazel Muir searches for evidence of the X-wind

Within 20 years, scientific progress is likely to trigger an incident that kills a million people, says England's Astronomer Royal, Martin Rees. If the human race is to survive this century, it's time to make some difficult decisions about the future of s

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