Articles About December (14)
The 12 Months of the Year
The 12 months of the year are linked to the Moon's orbit around Earth. Why are there 12 months? What do the month names mean?
When do seasons begin and end in the two hemispheres?
Full Moon Names
Full Moons had given names in many ancient cultures. The Full Moon names we use today often reflect nature like Harvest Moon.
2020 Cosmic Calendar
Astronomical events and highlights of 2020 including supermoons, solar and lunar eclipses, meteor showers, solstices, and equinoxes.
The December solstice is the summer solstice in the Southern Hemisphere and the winter solstice in the Northern Hemisphere.
When Is Winter Solstice?
The Winter solstice in the Northern Hemisphere is in December, while in the Southern Hemisphere, it's in June.
December Solstice Facts
10 things you may not know about the December Solstice, the shortest day of the year in the Northern Hemisphere.
When Is Summer Solstice?
The summer solstice in the Northern Hemisphere is in June, while in the Southern Hemisphere, it's in December.
The Month of December
December is the twelfth month of the year and has 31 days. It was originally the tenth month of the Roman calendar until 153 BCE.
December: Cold Moon
The December Full Moon is called the Cold Moon, Long Nights Moon, the Moon before Yule, Oak Moon, and Wolf Moon.
December Solstice Customs
Learn more about the customs, traditions and events surrounding the December solstice.
June Solstice Facts
11 things you may not know about the June Solstice.
All about Comet ISON
Everything you need to know about Comet ISON or C/2012 S1.
Brightest Comet of 2018
Comet 46P/Wirtanen will grace the night sky in December 2018. Find when, how, and where to see the brightest comet of the year with your naked eyes.