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Why are stars so bright on winter nights?
In December, January and February, we look away from the Milky Way's cloudy core toward the Orion spiral arm, with stars so bright they capture our attention.
December 26, 2025
No ocean on Titan? New research reveals slushy ice world
Scientists thought there was a global ocean on Titan beneath its icy surface. But a new study says the moon's interior may be more icy and slushy instead.
December 26, 2025
January full moon: Super Wolf Moon near Jupiter and perihelion
The 2026 January full moon, the Super Wolf Moon, is fullest on the morning of January 3. It'll appear full on both January 2 and 3 with Jupiter nearby.
December 26, 2025
Earth’s radio bubble marks how far our signals have traveled
Earth's radio bubble is the extent to which our radio broadcasts have traveled. The 1st intentional radio broadcast was on December 24, 1906. Where is it now?
December 24, 2025
Apollo 8 Earthrise photo Christmas Eve 1968
Astronaut William Anders took this iconic photo of Earthrise on the 4th orbit of the moon aboard Apollo 8 on December 24, 1968.
December 24, 2025
The most exciting dinosaur discoveries of 2025
2025 was an amazing year for dinosaur discoveries, from dome-headed dinos to mini T. rexes. Here are some of the most exciting discoveries of the past year.
December 24, 2025
Solar wind ‘U-turn’ spotted by Parker Solar Probe
NASA's Parker Solar Probe images have revealed solar material blasted out from the sun returning to our star, rather than escaping as solar wind.
December 23, 2025
Top 6 favorite EarthSky videos from 2025. Watch them here!
Here are our top 6 favorite EarthSky videos from 2025. What will we share in 2026? Visit YouTube.com/@EarthSky to find out!
December 23, 2025
See the top 10 stories of 2025 from EarthSky
Here are the top 10 stories of 2025. An interstellar comet visited us, cameras captured a meteorite strike and an earthquake, and much more!
December 23, 2025
The Christmas Tree cluster, a December delight
The Christmas Tree cluster is a collection of sparking bluish-white stars. It is above a cone-shaped cloud of gas in the constellation Monoceros.
December 23, 2025
