This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Among the many wonderful things that NASA ...

Even as a brilliant, naked-eye comet slices through Earth's sky (cheers, Comet Lemmon!), the most famous object in the solar system right now is hidden on the far side of the sun: the interstellar ...

Right now, while you watch this video, something invisible is passing through the Solar System. It moves silently, without shining, without leaving a clear trace. Our telescopes miss most of it, our ...

3I/ATLAS, an interstellar object identified by NASA as a comet, recently passed its closest point to the sun. Scientists around the world are observing its months-long journey to learn more about the ...