Fall equinox 2025 arrives on Monday 22. Find out why the first day of autumn still features a little more daylight than ...

The equinox occurs at the same moment wherever you are on Earth but what is it and when does it take place? Chris Fawkes has ...

September marks the fastest loss of daylight, with nearly three minutes disappearing each day this week as sunrises get later ...

Children’s hair can reveal hidden patterns of stress that build up over time. The patterns give scientists and doctors ...

Earth’s radiation can send some molecules spinning or vibrating, which is what makes them greenhouse gases. This infographic ...

Long ago, the Moon was much nearer Earth. Scientists believe a protoplanet collision created the Moon 4.5 billion years ago.

The fall season officially begins on Monday, Sept. 22, 2025, with the autumnal equinox. An equinox occurs when the Earth's axis is tilted neither toward nor away from the sun, resulting in nearly ...

While days have been gradually getting shorter in the Northern Hemisphere since the summer solstice, the rate at which we lose daylight speeds up as time goes on — peaking in the days around the fall ...

Summer is coming to an end and on its heels is the autumnal equinox. What is that? Are the leaves changing color yet?

Daylight hours are already shortening across the state, with eastern towns first to see earlier sunsets beginning Sept. 18.

A new NASA study has found that the Sun's activity is ramping up, reversing the trend and surprising astronomers. Humans have ...

Modern astronomy tools show that many people’s true astronomical sign could differ from their familiar zodiac sign by several ...