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NASA’s SPHEREx observatory completes stunning 1st cosmic map
NASA's SPHEREx has produced its 1st cosmic map, revealing the entire sky in 102 colors. Take a look at this spectacular map.
December 28, 2025
Orion the Hunter, the most recognizable constellation
Orion the Hunter may be the most recognizable constellation, visible from both hemispheres. It's best in winter from the north and summer from the south.
December 28, 2025
Strange ‘spider’ on Europa hints at water lurking below
Researchers say that a huge 'spider' on Europa likely formed when a crater-creating impact caused briny water to spill out onto the surface.
December 27, 2025
Earth at perihelion – closest to sun – on January 3
Every year in early January, Earth reaches its closest point to the sun in an event called perihelion. In 2026, it's on January 3.
December 27, 2025
Fledgling seabirds in Hawaii are easy prey for tiger sharks
When seabirds fledge at an atoll in northwestern Hawaii, tiger sharks move in to prey on the fledgling seabirds, disrupting shark populations in the area.
December 26, 2025
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
