September’s superb nocturnal sights are redoubled this year with an extravagant bestowal of stunning beauties wedded to a ...

Most cosmic dust exhibits random atomic structures, and appears like soot. Thanks to NGC 6302’s extreme stellar energy, the ...

Ursa Major III was considered a dark matter galaxy, but was found to be a compact star cluster with a dense core of black ...

Comet 3I/ATLAS is captured in this image by the Gemini North telescope. The incredible sensitivity of Gemini North's ...

Mysterious spherical droplets in meteorites aren’t just cosmic oddities. They’re evidence of planetary formation.

Two more of NASA's space telescopes got another look at comet 3I/ATLAS, an interstellar interloper that captured the world's ...

For decades, astronomers have wondered what the very first stars in the universe were like. These stars formed new chemical ...

May the oldest comet on record also be one of the most bizarre? The interstellar visitor 3I/ATLAS, found on July 1, 2025, is rewriting the book on what a comet from outside our Solar System will do.