The vernal equinox arrives on Thursday, March 20, officially marking the beginning of spring in the Northern Hemisphere and ...

However, the line that separates the bright areas of day and the shadowed areas of night on Earth, changes position during the year. Sometimes it will go from north to south, but sometimes it can ...

The number of daylight hours changes throughout the seasons ... the third furthest from the Sun after Mercury and Venus. Night-time – The time of day when that part of the Earth is facing ...