Spring gets its official start Thursday in the Northern Hemisphere with the arrival of the vernal equinox. But what does that mean?

We've officially entered the dog days of summer, accompanied by severe heat. For those looking forward to cooler weather this ...

We've officially entered the dog days of summer, accompanied by severe heat. For those looking forward to cooler weather this ...

What is the autumnal equinox? Every season, we celebrate either an equinox or a solstice (there are two of each). The other equinox is celebrated in the spring, called the vernal equinox.

What is the autumnal equinox? Every season, we celebrate either an equinox or a solstice (there are two of each). The other equinox is celebrated in the spring, called the vernal equinox.

What is the autumnal equinox? Every season, we celebrate either an equinox or a solstice (there are two of each). The other equinox is celebrated in the spring, called the vernal equinox.

What is the autumnal equinox? Every season, we celebrate either an equinox or a solstice (there are two of each). The other equinox is celebrated in the spring, called the vernal equinox.