The autumnal equinox is upon us Sunday, and with it a shift to shorter days, longer nights and the astronomical start of fall in the Northern Hemisphere. Equinoxes occur when Earth reaches a point in ...

The autumnal equinox doesn't just mark a seasonal shift, but also increases the chances of dazzling auroras thanks to the Earth's orientation and magnetic field The National Oceanic and Atmospheric ...

SAN FRANCISCO (KGO) -- The September equinox is here! The word "equinox" is Latin for "equal night," when all parts of the Earth experience close to 12 hours of daylight and 12 hours of darkness. The ...

March 2024 may be the best month in the best year to see the Northern Lights, aka aurora borealis. That's because the sun is hyperactive, and the equinox can create holes in Earth's magnetic field.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A sky-covering aurora as seen from the Hurtigruten ship the ...

After another brutally hot summer, cooler, shorter days — and pumpkins — are on our doorstep. The autumnal equinox arrived Sunday, marking the end of astronomical summer and the first day of fall in ...

The CME is predicted to hit our planet on Wednesday after erupting along with a solar flare from a sunspot named AR3835 on Sunday. While the explosion will mostly miss Earth, its timing will make all ...

PORTLAND (WGME) --In case you missed it, Sunday was the first day of autumn. The Fall Equinox was at 8:44 am on Sunday, September 22nd. What exactly happens during the fall equinox? Equinox is Latin ...

The sun is about to enter the Northern Hemisphere, which means some stunning auroras may be visible in the coming weeks. At ...

As the Earth travels around the sun, it does so at an angle. For most of the year, the Earth’s axis is tilted either toward or away from the sun. That means the sun’s warmth and light fall unequally ...

At the Northern Hemisphere’s winter solstice the upper half of the Earth is at its furthest lean away from the sun — leading to the shortest day and longest night of the year. The winter solstice ...

Spring is almost here — officially, at least. The vernal equinox arrives on Tuesday, marking the start of the spring season for the Northern Hemisphere. But what does that actually mean? Here's what ...