Spring officially begins today (March 20) with the vernal equinox, bringing longer days and warmer temperatures to the Northern Hemisphere.

While temperatures are heating up and desert flowers are starting to bloom, astronomical spring won't start until later in the month.

This means the hemispheres are getting very different amounts of sunlight ... While astronomical seasons depend on how the Earth moves around the sun, meteorological seasons are defined ...

Meteorologists and climatologists use a slightly different time scale for ... will equally shine the Earth's two hemispheres. The next astronomical season begins on June 21, 2025, marking the ...

This means the hemispheres are getting very different amounts of sunlight ... While astronomical seasons depend on how the Earth moves around the sun, meteorological seasons are defined by ...