A personal DNA test that has sparked controversy in the US has been approved for use in the UK by regulators.

HIV is evolving to become less deadly and less infectious as it spends more time infecting people, according to a major scientific study.

Prof Stephen Hawking, one of the world's leading scientists, warns that artificial intelligence "could spell the end of the human race".

Analysis of Richard III's DNA has thrown up surprising evidence of infidelity somewhere in his family tree.