Comet 3I/ATLAS has arrived as the third confirmed visitor from interstellar space, and it is not behaving the way a quiet ...

Is there a full moon tonight? Here's when to watch January's special wolf moon - a supermoon that will shine for days amid ...

Every January, Earth reaches its closest point to the Sun, known as perihelion. Yet, it’s winter in the Northern Hemisphere.

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

P erihelion – or the Earth's closest approach to our host star – will take place on January 3, 2026. At this point, our ...

Earth's seasons look very different at locations not far from each other, 20 years' worth of satellite data reveals. Earth's seasonal cycles can vary dramatically across short distances, even at the ...

The combination of the elliptical orbit, affecting the speed of the planet, and the axial tilt, causing the length of ...

While the solstice marks the shortest day of the year, the amount of daylight we gain in the first week afterward is ...

Even though the shortest day of the year is behind us, the sunrise in most of the U.S. will keep getting later and later for a couple of weeks.

Hidden star found orbiting a bloated red giant, Pi1 Gruis, offering a rare glimpse into how close companions shape dying ...

The James Webb Space Telescope has been helping scientists explore the cosmos for years now, but there are still plenty of ...