A research team from the Kyushu Institute of Technology, Kwansei Gakuin University, Tokyo City University, Kanazawa ...

Just as the diurnal sunrise-to-sunset cycle marks the passing of each day, Earth’s seasons—spring, summer, fall (autumn), and winter—mark the passing of a year. And similarly to how the time of day ...

When we think about the seasons, we usually picture spring flowers, summer heat, autumn leaves, and winter snow. But did you know that meteorologists and astronomers use two different systems to ...

October 11, 2026During a three-day weekend, I stayed at a Yatsugatake highland resort and visited this place as one of the ...

All living creatures are affected by the cycles of celestial objects. Humans have always been locked into the rhythms of sunrise and sunset, the phases of the Moon, and the seasons. We left some of ...

Did you know that winter begins on two different dates? It depends who you ask. The winter solstice is often classified as the season's first official day. But that isn't true, according to some ...

Guy Ottewell’s Astronomical calendar is well-known and popular among amateur astronomers. Previously, it was available in printed form from 1974 to 2016, and used by thousands of sky-lovers in more ...

Astronomical seasons are determined by Earth’s position relative to the Sun. They begin with astronomical events called solstices and equinoxes: Spring begins with the vernal equinox, when day and ...