The oldest known hominid fossils yet found in southern Africa are uncovered at the world-famous Sterkfontein Caves.
Millions of electronic messages from over the past 20 years have been saved from digital oblivion.
The world's largest offshore wind farm - big enough to supply 10% of Ireland's energy - is to be built on a sandbank in the Irish Sea.
Officials at Iceland's main airport say the face-recognition technology will help them improve security.
A video game inspired by the artist Kandinsky aims to stimulate the senses with its stunning visuals and pulsating beats.
Unsolicited e-mail is becoming a problem for users and internet service providers.
One of the world's rarest birds, Gurney's pitta, has been sighted again in Burma almost 90 years after it was last seen.
A 30,000-old site found in Arctic Siberia may have been home to the first Americans' ancestors, say scientists.
The discovery of remains belonging to a tiny species of ancient human has been hailed as one of the most sensational finds of its type in decades.
Planting trees to offset carbon will have little impact unless they are put in the right place, scientists say.