Former NASA astronaut and Columbia University professor Mike Massimino joins TODAY to share his unique perspective to explain ...

According to Britannica, the fall equinox is one of two moments in the year when the sun is exactly above the equator. The ...

Tuesday is anticipated to be the warmest day of the week with western interior temperatures warming into the 70s under plenty ...

Autumn brings longer, cooler and clearer nights. Summer’s bright constellations and dense star clouds of the Milky Way give ...

Later on as cloud cover diminishes, temperatures will still be on the cooler side. Highs on Monday will be around the low to ...

The sun's light and warmth fall unequally on the northern and southern halves of the planet, so during different seasons, the ...

The fall equinox brings the sun into perfect symmetry with east-west streets, providing a dazzling phenomenon over the ...

Pacific Standard Time on Sunday, Sept. 22, it's both astronomically and meteorologically fall in the Northern Hemisphere.

The first day of fall is upon us!  The autumnal equinox took place at 8:44 am EDT this morning, marking the official start of the fall season.   This is not our only equinox of ...

Today (Monday 9/23) is the first full day of the Autumn or Fall Season. The Autumn Equinox was at 8:43 AM Sunday. The word “equinox” means “equal night”. Every point on ...

The "Chicagohenge" phenomenon aligns with the fall equinox, offering picturesque sunrise and sunset views between city ...

The fall equinox arrives in South Florida with continued summer heat, a slight chance of showers, and a tropical system ...