Droughts could kill off the tallest trees in tropical rainforests in coming decades, a study suggests.
Crops with improved yields could more easily become a reality, thanks to a development by scientists.
Astronomers have identified for the first time one of the key components of many stars, a study suggests.
The first animals to have complex skeletons existed about 550 million years ago, fossils of a tiny marine creature unearthed in Namibia suggest.
Weather patterns in a mysterious world beyond our solar system have been revealed for the first time, a study suggests.