While spring officially starts on Thursday morning, wintry weather and below-average temps are the name of the game for days ...

The vernal equinox marks the moment when the Sun crosses the celestial equator, bringing nearly equal day and night to both ...

Did you know both the astronomical first day of spring and Easter Sunday are tied to the spring equinox? How they relate, what to know for spring 2025.

Spring gets its official start Thursday in the Northern Hemisphere with the arrival of the vernal equinox. But what does that ...

Natural cycles in Earth's rotational axis and its orbit around the sun drive climatic changes, and now researchers have ...

Earth is tilted on its axis, meaning that sunlight falls unevenly ... She received her master’s degree in science writing from Johns Hopkins and her bachelor's degree in neuroscience from ...

Research links Earth's axial tilt to past ice ages, showing human-driven warming may prevent future glaciations.

Obliquity refers to Earth's tilt. Imagine ... between 22.1 and 24.5 degrees approximately every 40,000 years. Precession refers to the "wobble" of this rotational axis. Let's go back to that ...