Huge numbers of lesser flamingos begin breeding at Tanzania's Lake Natron in one of nature's greatest spectacles.

Scientists use a novel technique to probe the expansion of the Universe and the role of dark energy some 10 billion years into the past.

Tens of thousands of people gather in northern Australia in the hope of glimpsing a rare total solar eclipse.

US government technology supplier Lockheed Martin has said that the pace of cyber-attacks has increased dramatically.