When 'Oumuamua traversed our solar system in 2017 it was the first confirmed Interstellar Object (ISO) to do so. Then in 2019, Comet 2l/Borisov did the same thing. These are the only two confirmed ...

A massive interstellar object passing through our solar system during its formative ... by celestial objects from outside the system, not unlike the big space rock Oumuamua, which was spotted ...

He said both probes had now "made it into interstellar space" and that Voyager 2's date of departure from the Solar System was 5 November 2018. On that date, the steady stream of particles emitted ...

The discovery doubles the known number of these mysterious celestial objects across our solar system that resemble ... object we discovered from interstellar space exhibited similar behaviors ...

How is our solar system different from interstellar space, and what separates the two? Author Jim Bell explains in this clip from THE FARTHEST and in an excerpt from his 2015 book, THE ...

The first known asteroid to visit our Solar System from interstellar space has been given a name. Scientists who have studied its speed and trajectory believe it originated in a planetary system ...

The problem, explained Hajduková's team, is that this imprecision can make meteors native to our solar system seem as though ...

A massive interstellar ... of the planets in the solar system to migrate inwards or outwards. It was also common at this time for the planets to be visited by celestial objects from outside the system ...