How the Tonga volcano generated a shock wave around the world

How the Tonga volcano generated a shock wave around the world

The Hunga Tonga volcano in the southwest Pacific erupted explosively on Saturday evening local time, producing a tsunami, sending ash 100,000 feet high and generating an atmospheric shock wave that… Read more
Buenos Aires reaches 106° in the midst of a severe South American heatwave

Buenos Aires reaches 106° in the midst of a severe South American heatwave

A multi-day heatwave is sweeping parts central South America and bringing unprecedented warmth to many large cities. Parts of Argentina are about 25 degrees above normal, while Chile, Paraguay and… Read more