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Latest sunrises late December and early January
Did you know the latest sunrises don’t occur on the shortest day, and the latest sunsets don’t fall on the longest day of the year?
December 23, 2025
Brown bears in central Italy are becoming less aggressive
As Apennine brown bears learned to co-exist with humans in central Italy, they evolved to become smaller and less aggressive, according to a new DNA study.
December 22, 2025
Earth’s atmosphere sheds onto the moon!
Researchers found Earth's atmosphere sheds onto the lunar surface thanks to the solar wind stripping particles, which then spiral along magnetic field lines.
December 21, 2025
Solstices and equinoxes seen from space
See how sunlight falls on Earth's surface during the solstices and equinoxes, and get a better understanding of why Earth's tilt causes the seasons.
December 21, 2025
What was the Christmas star? Science and mystery
What was the Christmas star? Some scientific explanations attempt to explain the Star of Bethlehem, including a planetary conjunction, comet or supernova.
December 21, 2025
Interstellar object Comet 3I/ATLAS leaving the solar system
Interstellar object Comet 3I/ATLAS makes it closest pass by Earth today (December 19, 2025). How close will it come? And where will it go after this?
December 19, 2025
Will the U.S. have a white Christmas in 2025? Find out here!
Will the U.S. have a white Christmas in 2025? Most of the U.S. will have a green and relatively warm Christmas, but snow is possible in some areas. More here!
December 19, 2025
Triangulum the Triangle in northern skies
The constellation Triangulum lies close to overhead in northern skies on December evenings. It contains the Triangulum galaxy, a gorgeous pinwheeling spiral.
December 19, 2025
Hotspots for Category 6 storms are growing
Category 6 storms - or extremely strong Category 5 hurricanes on the current scale - arise in hotspots on the globe, and those spots are growing.
December 18, 2025
These giant sea reptiles lived in freshwater rivers, too
Scientists thought mosasaurs - giant sea reptiles - lived in oceans. But the discovery of fossils in North Dakota shows they may also have lived in freshwater.
December 18, 2025
