Meteorological seasons are defined by the weather. They break down the year into three-month seasons based on annual ...

Maryland’s fall season begins Sept. 22 with the equinox, and foliage is expected to peak between mid-October and early November depending on the region.

While the days have been gradually getting shorter since the summer solstice, the rate at which Washington loses daylight ...

The autumnal equinox is the day when Earth’s tilt is exactly perpendicular to the sun. The Earth’s tilt makes it so that the ...

Forecasters warn of possible G2 geomagnetic storms as a colossal coronal hole sends solar wind racing our way.

September 2025 features a rare celestial double feature: a dramatic lunar eclipse on the 7th and a partial solar eclipse on ...

New Moon on 9/21, Partial Solar Eclipse in NZ on 9/21, Saturn at Opposition, September Equinox, Neptune at Opposition.

The Fall Equinox marks the official start of autumn in the Northern Hemisphere, representing a key shift in Earth’s relationship with the Sun. While it is often linked to equal day and night, the ...

During the equinox, the sun crosses Earth’s equator, heading south. Earth’s axis is tilted neither toward nor away from the ...

Two marquee celestial moments will headline late September, giving stargazers a bright planet to admire and a seasonal reset ...

On Monday, Sept. 22, day and night will be nearly equal in length as Earth's axis is side-on to the sun, officially beginning ...

Two marquee celestial moments will headline late September, giving stargazers a bright planet to admire and a seasonal reset ...