Add Yahoo as a preferred source to see more of our stories on Google. SIOUX CITY, Iowa (KCAU) — This Sunday, September 1st marks the beginning of meteorological Fall! However, astronomical Fall for ...

When will summer end? When is the first day of fall? What time is the autumn equinox? Two dates three weeks apart mark start ...

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 ...

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 ...

You may have heard us talk about "meteorological seasons" that don't match up with the seasons you typically see on the calendar. While that may sound weird, there is a reason meteorologists use these ...

Astronomical sciences encompass the observation, interpretation and theoretical modelling of all objects beyond Earth’s atmosphere, from planetary systems and stellar nurseries to galaxies and the ...

Dr. Leonardos Gkouvelis, researcher at LMU's University Observatory Munich and member of the ORIGINS Excellence Cluster, has solved a fundamental mathematical problem that had obstructed the ...

Add Yahoo as a preferred source to see more of our stories on Google. Did you know that winter begins on two different dates? It depends who you ask. The winter solstice is often classified as the ...