After a long, cold winter, the vernal equinox heralds the arrival of spring in the Northern Hemisphere. But have you heard ...

According to NASA, the solar cycle is a natural process of the Sun, in which the Sun goes through periods of increased and ...

Here is what to know about the beginning of spring in Tennessee. This year, the first day of astronomical spring is March 20.

The first day of spring occurs on the spring equinox, which is also known as the March equinox or the vernal equinox.

The "equinox effect" doubles the chance of auroral activity in March and September, when the fall equinox occurs, scientists say.

The first day of spring is marked by the spring equinox, when the sun shines directly on the Earth's equator, giving equal amounts of day and night.

The vernal equinox, marking the start of spring, is March 20, 2026. Here's what to know as the season nears.

The combination of the Spring equinox and the Sun's solar cycle starting towards its minimum means now is the last best time ...

The Spring Equinox 2026 kicks off on Friday, March 20, precisely at 3:45 p.m. (UTC+1), according to the Institute of Celestial Mechanics and Ephemerides Calculation (IMCCE). At this exact moment, the ...

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March brings one of the fastest increases in daylight of the entire year for the Northern Hemisphere. The increase in daylight is caused by the Earth's 23.5-degree tilt on its axis as it orbits the ...

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes ...