Scientists have found a discrepancy in estimates for the rate of expansion of the universe. Why is this and what does it mean?
On 21 August the total eclipse makes landfall in Oregon at 10:17 PDT and speeds across the country to leave the coast of South Carolina at 14:48 EDT
Scientists describe ‘cultural loss of unprecedented magnitude’ as global atlas reveals extent of light pollution in the world’s skies
When he’s not playing guitar for Queen, Brian May PhD is an astronomer and inventor. He talks about his latest gadget – an update on the Victorian stereoscope