Billions of light years away in a remote part of the universe, two neutron stars – the ultradense remnants of dead stars – collided. The catastropic cosmic event sent light and particles, including a ...
The fragile-looking filaments of cooled lava known as Pele’s hair can form when pockets of bubble-rich lava pull apart rapidly, experiments suggest. Among all the ways that molten rock can solidify ...
Mulugeta Bekele is almost single-handedly responsible for having kept Ethiopian physics going in the 1970s and 1980s despite being imprisoned and tortured by the Ethiopian military. Robert P Crease ...