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

The first day of spring 2025 arrives on March 20 at 10:47 UTC, bringing astronomical significance, cultural traditions, and ...

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 ...

Home to about 90% of the world's population, with the largest fraction living in the mid-latitudes, more frequent and more severe heat waves and droughts have occurred in the Northern Hemisphere ...

For the Northern Hemisphere, the official summer season starts on June 20 or 21, depending on where you live, with the arrival of the summer solstice. So what is a solstice, exactly? It's the ...