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Posts by
Editors of EarthSky
Juno spacecraft’s 4 latest discoveries at Jupiter
Juno has been studying Jupiter and its moons since it arrived at the giant planet in 2016. Here are 4 of its newest discoveries, courtesy of NASA.
December 26, 2021
Latest sunrises late December and early January
For the northern half of Earth, the return of the light. The latest sunrises of the year come in late December and early January.
December 26, 2021
Webb Telescope launch December 25: Success!
NASA now says that - due to adverse weather - the Webb Telescope will launch no earlier than Christmas Day, December 25.
December 25, 2021
Personal solstices: EarthSky community photos
Personal solstices - photos from the EarthSky community around the world - showing what the December solstice means to them.
December 24, 2021
Why do pine trees smell good?
Pine trees - as well as spruce and fir, all Christmas tree favorites - produce chemicals called terpenes, giving them their special, distinctive scent.
December 22, 2021
What’s a safe distance from a supernova?
What's a safe distance from a supernova? To survive a supernova, Earth would have to be at least 50 light-years away from the exploding star.
December 21, 2021
Year’s shortest season starts at the December solstice
The year's shortest season - between the December solstice and March equinox - is about 89 days. It's 5 days shorter than the longest season.
December 21, 2021
December full moon – a solstice full moon – on December 18-19
The December full moon is called the Cold Moon, Moon Before Yule, or Long Night Moon. It crosses high in the sky, mimicking the June sun.
December 17, 2021
Hole punch clouds are made by jets. Photos here
Hole punch clouds are a type of cloud that features a flat cloud layer interrupted by a big hole, often with wisps at the center, created by aircraft.
December 17, 2021
The Local Group is our galactic neighborhood
What is the Local Group? It's a collection of the nearest galaxies in space. Read more about these neighbors to our home Milky Way galaxy.
December 8, 2021
