In each year there are two equinoxes; in March we have the vernal or spring equinox and in September we have the autumn equinox. The word equinox derives from the Latin words ‘aequi’, which ...

Most of us are familiar with the term equinox, and Wednesday, 20 March, was the spring equinox which marked the start of astronomical spring. This is when the sun passed over the equator or the ...

The winter solstice is the shortest day and longest night of the year. Here's what Arizonans are asking about the solstice ...