That brings to an end our live updates from the 12th day of Egypt's political stand-off. You can continue to follow events with regular updates on the BBC news website throughout the night. Thank you ...

When the ocean was churned by gods and demons alike, the universe revealed its most powerful secrets.” One of the most ...

The creation of three "dire wolf" pups has raised hopes that it may be possible to resurrect extinct animals. But some scientists have grave concerns. Swathes of scientific data deletions are ...