NASA's IR space scope explores the Milky Way’s most prolific star-forming region, cracking open new secrets of how stars form ...

Their new study shows that Earth’s massive drop in temperature after the dinosaurs went extinct could have been caused by a large drop in calcium levels in the ocean. The study showed that the ...

The Moon passes 4° north of Jupiter at 9 P.M. EST. The pair shares the central regions of Gemini this evening, with the Moon appearing to the upper left of Jupiter, and framed on the left by the Twins ...

NASA’s Artemis 2 crew was moved into quarantine on Friday to ensure their health and safety in the days leading up to the much-anticipated launch. For the first time in over 50 years, NASA is ...

For many years, planetary scientists have believed that water-rich meteorites arriving late in Earth’s history (OK, the time might be late to the researchers, but it’s still 4 billion years ago) could ...

Take advantage of the dark window before the crescent Moon rises to explore the Rosette Nebula, also cataloged as NGC 2237. This gorgeous sight is made up of a central open star cluster surrounded by ...

Albert Einstein’s theory of general relativity is just over 100 years old, and so far it has predicted the interaction between celestial objects and the space-time field very well. There are a few ...

The September 2025 issue featured “A guide to beginner’s guides,” a reminiscence and description of some the books for astronomy beginners that Contributing Editor Raymond Shubinski recommends or ...

Comet 3I/ATLAS is hitting a major milestone on Oct. 30, 2025. The interstellar comet is reaching perihelion, its closest point to our Sun, marking the climax of its brief journey through our solar ...

The gibbous Moon passes 5° north of Uranus at 2 P.M. EST. Tonight, you’ll find our satellite just northeast of the Pleiades star cluster in Taurus, with Uranus to their southwest. Many areas in Europe ...