Astronomers claim to have finally solved the cosmic chicken-egg problem by concluding that black holes came before galaxies.

The dietary supplement ginkgo, long promoted as an aid to memory, didn't help prevent dementia and Alzheimer's disease in the longest and largest test of the extract in older Americans.

Left parties will support the Bahujan Samaj Party, Janata Dal-Secular and other regional secular parties in the upcoming states assembly elections, said A B Bardhan, general secretary of Communist Party of India.

Zimbabwe's opposition warned on Tuesday its leader might steer clear of another regional summit designed to savge a power-sharing accord, saying it had yet to decide whether to trust President Robert Mugabe.

Barack Obama headed onto Republican turf on Friday bidding to seal the deal with voters 18 days from election day while warning Democrats not to forget their ability to "snatch defeat from the jaws of victory."