A visitor from another star system is quietly making its way out of the inner solar system, and it may be older than the Sun ...

The discovery of interstellar objects passing through our solar system has opened a new chapter in astronomy. To date, only three confirmed interstellar visitors have been detected: 1I/ʻOumuamua in ...

The interstellar object ʻOumuamua was discovered back on October 19, 2017, but the puzzle of its true nature has taken months to unravel, and may never be fully solved. Meaning ‘scout from the distant ...

Every once in a while, our solar system receives a fleeting visitor from the depths of our galaxy. On July 1, 2025, NASA’s ATLAS telescope in Chile discovered Comet 3I/ATLAS, the third known ...

A highly unusual object was spotted traveling through the solar system in 2017. Given a Hawaiian name, ʻOumuamua, it was small and elongated – a few hundred meters by a few tens of meters, traveling ...

The recent discovery of the first interstellar asteroid is still creating a sensation among scientists, who would like to figure out—among other things—where the object now known as ʻOumuamua came ...

When the faint object now known as 3I/ATLAS was first detected by the ATLAS telescope in Hawaii earlier this year, astronomers classified it as another comet. Within weeks, it became clear that this ...