NASA’s Transiting Exoplanet Survey Satellite has once again surprised astronomers by tracking interstellar comet 3I/ATLAS, a ...

An 11th-century monk saw the famous "Halley's comet" first as a child and later as an adult, new research finds.

The comet broke into pieces after making a close approach around the sun in October 2025.

Comet C/2025 K1 (ATLAS) fragmented after its October 2025 solar approach, with telescope observations documenting multiple ...

Weeks after a rare interstellar comet made its closest pass to the sun, it will make it’s closest pass to Earth. NASA’s Psyche mission acquired four observations of interstellar comet 3I/ATLAS over ...

The interstellar visitor may still have a few things to tell us before it leaves our solar system.

The comet 3I/ATLAS is taking a long holiday journey this year. It’s visiting from another solar system altogether. Those interstellar origins... What to know about the 3I/ATLAS comet and why people ...

Astronomers suggest the honor should go to an 11th century monk known for a disastrous flying attempt.

The first reported observations of 3I/ATLAS were made to the Minor Planet Center on July 1 Jamie McCarthy/Getty;International Gemini Observatory/NOIRLab/NSF/AURA/K ...

Weeks after a rare interstellar comet made its closest pass to the sun, it will make it’s closest pass to Earth. The comet has traveled billions of miles through other systems in space. Its orbit is ...