Napoleon’s invisible enemy

December 1812. Snow is falling thick over the roads around Vilnius, in Lithuania. A cutting wind strips away the last strength of what, just a few months earlier, had been the most powerful army in Europe: Napoleon Bonaparte’s Grande Armée.

New human blood group discovered

Blood, the vital fluid coursing through our veins, is far more complex than most people imagine. In addition to the well-known ABO and Rh systems - which determine whether we are A, B, AB, or O, positive or negative - there are dozens of other blood groups, each with its own peculiarities.

A sea of toothless sharks

History and science of ice cream