Another month, another wild heat record. Vietnam set its all-time national high temperature over the weekend with the mercury cracking 43.4C. So yeah, global warming. It’s still happening.
Need to take a temperature in a hard-to-reach spot? Researchers have created the world’s smallest thermometer from DNA, and it could be used to measure temperature even within living cells.
This eerie picture shows an Antarctic research station which is used to store, of all things, snow samples. But with temperatures regularly dropping below — 70C, there’s no need for refrigeration.