Sparks fly. A hammer repeatedly strikes an anvil. Hit after hit, the red-hot piece of metal slowly takes the shape of a sword. The blacksmith, satisfied, holds it up in the air before returning it to ...

Burundi nominated former Senegal president Macky Sall for UN chief, but Africa's backing for him has fractured. AU procedural ...

A March 2026 paper has revived an old astronomical mystery, with former NASA developer Ivo Busko arguing that brief flashes captured on 1950 sky plates may be consistent with reflective objects ...

Colour vision is an integral part of the human visual system. It relies on the presence of three types of cone photoreceptor in the retina, which have different but overlapping wavelength tuning ...