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

I pick out North America’s celestial highlights for the week ahead (which also applies to northern hemisphere mid-northern ...

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

The moon slipped between the Earth and the sun on Saturday, casting a shadow on our planet in parts of the United States, ...

You can tell spring has officially begun in the Northern Hemisphere just by looking at the stars. Here's how to easily spot ...

This event signals the start of Spring in the Northern Hemisphere and Autumn in the Southern Hemisphere, a transition that also manifests in our evening skies as winter constellations start to vanish.

The galaxy cluster known as the "Leo Trio" appears in the early evening sky around the beginning of spring in the Northern Hemisphere in March. The ph... Deadline for medical students to return ...

Spectacular displays of the Northern Lights have been seen over recent nights with the potential for more to come.

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

Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere. During an equinox, the center of the ...

The difference between an equinox and a solstice is based on Earth’s tilt, affecting daylight length and the changing of ...