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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.

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.

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.

Personal solstices: EarthSky community photos

Personal solstices - photos from the EarthSky community around the world - showing what the December solstice means to them.

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.

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.

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 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.

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.

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.