An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

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The object gained an official name, C/2025 N1 or 3I/ATLAS, on Wednesday. Moving at a record-setting speed for an interstellar ...

The most distant known example of what astronomers call a “jellyfish galaxy” has been spotted by NASA’s James Webb Space ...

Astronomers have used the Atacama Large Millimeter/submillimeter Array (ALMA) to peer into the early universe and uncover the building blocks of galaxies during their formative years. The CRISTAL ...

After years of preparation, U.K. astronomers are celebrating a major milestone as the Vera C. Rubin Observatory reveals its first dazzling images of the night sky. This marks the beginning of the most ...

Astronomers uncover the first direct evidence for how some white dwarf stars explode, confirming the long-debated ...