As the Northern Hemisphere welcomes spring today, the Southern Hemisphere is marked with the first day of autumn.

This astronomical moment is known as the winter solstice, when the Northern Hemisphere experiences the shortest day and longest night of the year. It comes just in time for the holidays ...

Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere. During an equinox, the center of the sun is on the same plane as the equator. After the vernal equinox in March, ...

In the Northern Hemisphere, this marks the astronomical beginning of the summer and longest day of the year. In the Southern ...

The vernal equinox arrives on Thursday, marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere. On the equator, the sun will be directly overhead at ...

On the winter solstice in December ... sunset is in the southwestern sky – a much shorter path across the Northern Hemisphere sky – so days are short and nights are long.

This solstice falls between June 20 and 22.Meanwhile, at the winter solstice, the Northern Hemisphere is leaning away from the sun — leading to the shortest day and longest night of the year.

In the Northern Hemisphere, this marks the astronomical ... In contrast, this year's winter solstice will see only about 9 hours and 45 minutes of sunlight. Summer break start dates at Western ...