20 October 2011 Last updated at
Colonel Gaddafi: Rise and fall
Life and times of Colonel Gaddafi
Colonel Muammar Gaddafi's long rule of Libya ended in bitter civil war. We chart his path from young revolutionary to fugitive.
Warning: This timeline contains pictures some readers may find disturbing.
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Libya after Gaddafi
Features and Analysis
Libyans who have fled Sirte tell of life under the so-called Islamic State, who have taken control of the city.
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Nigeria's two main presidential candidates sign an agreement to prevent violence in tightly contested elections due on Saturday.
Tuesday's devastating attacks in Brussels show IS's European network is still at large, despite a year of intensive efforts by security forces to close it down.
Scientists are debating whether it's possible to harness the power of gravity for interstellar space travel.
The four-year-old boy who has become the centre of a controversy between India and Pakistan - and between his father and mother.
Why, almost 60 years after he first appeared in the Daily Mirror, is a layabout lout from north-east England still so loved around the world?