Passages of the Solar System have only been established in three interstellar objects, but the construction of new telescopes ...

The interstellar comet 3I/ATLAS arrived looking like a routine icy visitor and then promptly started shredding the rulebook ...

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

What: A forward-looking SETI Live discussion examining the most significant space science missions, discoveries, and observational opportunities anticipated in 2026.

NASA’s TESS spacecraft captured dozens of images of interstellar comet 3I/ATLAS in. The data show the rare visitor behaves ...

An international team of scientists has examined dust grains gathered by the NASA Stardust spacecraft and brought back to Earth – and has discovered that they originated in the interstellar dust ...

The Hubble Space Telescope has captured startling structures on interstellar comet 3I/ATLAS, narrow, sun-facing dust streams that defy conventional comet models, as researchers publish deep analyses ...