Homo naledi, an extinct human relative with one-third the brain size of ours, buried and may have memorialized their dead, controversial research suggests.
An analysis of thousands of healthcare records adds to mounting evidence that people who get the shingles vaccine in their 70s may reduce their dementia risk over the following seven years.
Look North as the stars appear in June and July to have a chance of seeing rare noctilucent (or 'night-shining') clouds with the naked eye.
Taking the drug Tagrisso daily after surgery reduced non-small cell lung cancer patients' death risk by more than 50%.