Is the fall equinox actually the day that day and night are precisely equal? It’s a question that recurs each September, and although the name implies they’re equal, they happen to work out slightly ...

Day and night will get equal time for a brief moment Monday as much of the world heads into fall. The autumnal equinox arrives Monday, marking the start of the fall season for the Northern Hemisphere ...

Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes and 4 seconds with respect to other distant stars. Scientists call this difference crucial to ...

Spring has sprung! Kat Troche from NASA expains why the length of day and night on the equinox aren’t precisely equal: Depending on your locale, equinoxes can be seen as harbingers of longer nights ...

This is read by an automated voice. Please report any issues or inconsistencies here. Day and night will get equal time for a brief moment as much of the world heads into fall. The autumnal equinox ...