The sun arrives at the December solstice at 10:03 a.m. EST on Dec. 21. This is the farthest south the sun gets in the heavens; it begins its six-month return northward at the moment winter begins in ...

Anytime after dark is great for looking more closely at one of the jewels of the winter night sky. Look below Orion's Belt — ...

Night sky update for December 17, 2025, covering the moon phase, visible planets, meteor showers, and key space and astronomy news from today ...

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes ...

Since it has the fewest hours of sunlight compared to the rest of the year, the Winter Solstice is considered the “shortest ...

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for.

Breakthroughs, discoveries, and DIY tips sent every weekday.

From the meteor showers to super moons, this time of year gives us a front row seat to one of the most active regions of the ...

December nights are the longest — and often some of the coldest — of the year. While some may dread December’s darkness, Colorado astronomy guide Mark Laurin — who is better known as Astro ...

Unlike YR4, finding earlier observations of 3I/ATLAS to model where it might have come from was easier said than done. During its July 1, 2025 detection, the interstellar object happened to be moving ...