As the Northern Hemisphere welcomes spring today, the Southern Hemisphere is marked with the first day of autumn.
The vernal equinox arrives on Thursday, marking the start of the spring season for the Northern Hemisphere ... southern halves of the planet. During the equinox, the Earth’s axis and its orbit ...
Spring is here — officially, at least.The vernal equinox arrived on Thursday, marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere.