U.S.A. - The arrival of spring is officially here, marking the vernal equinox in the Northern Hemisphere. This event occurs ...

U.S.A. - The arrival of spring is officially here, marking the vernal equinox in the Northern Hemisphere. This event occurs ...

Spring officially begins in the Northern Hemisphere on March 20 with the vernal equinox as the entire world experiences an ...

As the Northern Hemisphere welcomes spring today, the Southern Hemisphere is marked with the first day of autumn.

Spring brings a dramatic change to Washington’s sky this year. The bright planets that have kept us company over the long ...

As the vernal equinox approaches on March 20, 2025, the night sky comes alive with a dazzling mix of celestial events, ...

The Winter Circle (or Winter Hexagon) isn’t a constellation. It is an asterism, made of bright stars in the winter evening ...

The vernal equinox occurs as Mercury stands still in Pisces and several of Jupiter’s moons transit in the sky this week.

The results of Hera's flyby could ultimately tell us whether Deimos is a captured asteroid or made from debris from a giant ...

This month, a total lunar eclipse and blood moon will be viewable across the U.S. Here's the best times and places to view ...

The sun will cross the celestial equator at 4:01 a.m. CT March 20 ... Need help finding stars, planets and constellations? Try these free astronomy apps The following free astronomy apps can help you ...

Anywhere along Earth’s equator, the sun will be directly overhead ... wait later and later for true nightfall. One of the great constellations of spring is rising in the evenings in the east.