New research suggests it may take an average of three days for people to test positive on a nasal-based lateral flow test after their first positive PCR result
The patterns we see in the archaeological record suggest that progress may have been highly dependent on individuals, rather than being the inevitable outcome of larger cultural forces, writes Nicholas R Longrich
Small and dim it may look in our skies, but that’s just due its immense distance: in reality, the Orion Nebula is a vast seething maelstrom of incandescent gas, writes Nigel Henbest
