Watching the aurora borealis (in the Northern Hemisphere) or aurora australis (in the Southern Hemisphere) is unforgettable.

At the Northern Hemisphere’s winter solstice the upper half of the Earth is at its furthest lean away from the sun — leading ...

Today marks the shortest day and longest night of the year as the sun reaches its lowest point in the Northern Hemisphere sky ...

The shortest day of the year in the Northern Hemisphere and the longest day in the Southern Hemisphere has been marked around ...

The December Solstice marks the beginning of winter in the northern hemisphere as the Sun takes its shortest trip across the ...

The 2025 winter solstice will take place at 10:03 a.m. Eastern time Sunday, Dec. 21. The winter solstice is almost here to ...

JACKSONVILLE, Fla. — Dec. 21 marks the darkest day of the year in the Northern Hemisphere and the start of astronomical ...

The combination of the elliptical orbit, affecting the speed of the planet, and the axial tilt, causing the length of ...

The winter solstice arrived at 7:03 a.m. PST on Dec. 21, making Sunday the shortest day of the year in the Northern ...

The best time to view the Milky Way in the Northern Hemisphere is from March to September. The Milky Way, our home galaxy ...

Earth is taking in more energy than it releases back to space—a growing "energy imbalance" that is fueling global warming. A ...

The cherry industry in the South and North Hemisphere reconfigured its seasons while traditional and emerging markets seek to ...