The Northern Hemisphere is welcoming Spring 2025 on March 20, also known as the vernal equinox. The jump into spring has come ...

The spring equinox marks the start of astronomical spring. Wherever you are on the planet, the equinox occurs at the same ...

Two times a year, Earth’s orbit and its axial tilt combine so that the sun sits ... to join in gather to witness the sunrise over the ancient stones. Editor's note: This story was originally ...

The word equinox comes from two Latin words meaning equal and night. That’s because on the equinox, day and night last almost ...

Spring has officially sprung in North America, bringing with it the promise of warmer days. At precisely 5:01 a.m. ET on Thursday, March 20, the sun's rays fell directly on the equator, marking the ...

This ancient period of deep freeze, known as the Neoproterozoic Era, or “Snowball Earth,” lasted from about 1 billion to 543 million years ago. During that time, landmasses consolidated into a ...