This week presents an exciting array of astronomical phenomena, including the last quarter moon and several planetary alignments. In this article, we’ll explore key celestial events involving the ...

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.

Astronomical spring: The Earth’s orbit forms the basis for the astronomical calendar in which seasons are defined by two solstices and two equinoxes. The Earth is tilted 23.5 degrees on its axis ...

Astronomical spring: The Earth’s orbit forms the basis for the astronomical calendar in which seasons are defined by two solstices and two equinoxes. The Earth is tilted 23.5 degrees on its axis ...

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

“The Earth’s annual trip around the sun forms the basis for the astronomical calendar in which seasons are defined by two solstices and two equinoxes.” There are two equinoxes and two ...

Meteorological spring starts on March 1 and is based on annual temperature cycles, while astronomical spring starts on March 20 and is based on the Earth's position relative to the sun.

Meteorological spring starts on March 1 and is based on annual temperature cycles, while astronomical spring starts on March 20 and is based on the Earth's position relative to the sun. The vernal ...