Scientists are taking the once-radical concept of dimming the sun through stratospheric aerosol injection (SAI) seriously, ...

On the day of the 2025 autumnal equinox, the sun rises almost exactly due east and sets to the west. The months that follow will see cooler temperatures set in as the northern hemisphere receives less ...

Here's what you need to know to make the most of the partial solar eclipse on Sept. 21, as the moon takes a 'bite' out of the sun.

This story was updated to add new information. Spring has sprung, bringing warmer days and blooming flowers. Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere.

19th-century mathematics is giving way to 3D, high-resolution, real-topography models that could provide a more precise path of totality for the next total solar eclipse. Solar eclipse maps show crisp ...

Millions of Americans may have the chance to witness a partial solar eclipse on March 29, when the moon passes between the Earth and the sun, temporarily obscuring part of the solar disk. While not as ...