The autumn equinox, which comes around every September for the Northern Hemisphere, marks the official astronomical start of ...

During an equinox, places around the globe experience nearly equal amounts of daytime and nighttime. The second occurrence ...

Though the autumnal equinox is Sunday, marking the astronomical start of fall, Chicago-area residents wouldn't know without ...

Twice a year, the sun doesn’t play favorites. Everyone on Earth is seemingly on equal status – at least when it comes to the ...

But some events that might be described as "astronomically awesome" if not fully astronomical are also known for adding ...

Keep up with every full moon, meteor shower and all the sky drama with our calendar of the biggest astronomical events of 2024. Need a break? Play the USA TODAY Daily Crossword Puzzle. Yes, according ...

The Mayans were one of the most advanced ancient civilizations in terms of scientific advancements. Their crown jewel was the ...

When approaching Earth, asteroids tend to do one of two things: Most of the time, they miss. Sometimes, they hit, leaving a ...

Meteorological autumn began on Sept. 1, but astronomical autumn, also known as calendar autumn or the autumnal equinox, is on Sept. 22.

Whether you’re craving something sweet or something stronger, a beauty build-up or a festive jewellery box, these are the best adult advent calendars for 2024. This year’s top picks include a tequila ...

So what is the difference between the astronomical and meteorological calendars? Find out what you need to know below. When is the astronomical summer? The astronomical calendar is based on the ...