Scientists use plants to date Egypt's dynasties
Scientists have established for the first time clear dates for the ruling dynasties of ancient Egypt after carbon dating plant remains.
Light sabre laser could cause blindness
It looks like a toy based on the Star Wars films - a laser shaped like a light sabre - but experts say it is incredibly dangerous and could start a fire or cause blindness.
Bizarre beetles found in fossilised amber
Fossilised amber discovered in far northern Australia has been found to contain insect species which were trapped millions of years ago.