Researchers in Japan traced a hidden medieval solar storm using ancient tree rings and centuries-old sky observations. The ...

The amount of sunlight, or solar radiation, that a location receives makes a big impact on weather conditions, crop success, rainfall and overall climate trends. Today, instruments called ...

The Tenpō Famine of the 1830s was one of the worst in Japanese history, with the poor weather causing escalating rice prices as a major cause. To better understand how historical weather anomalies ...