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 ...

In the past decade, astronomers have witnessed three interstellar objects (ISOs) passing through the solar system. These include the enigmatic 'Oumuamua in 2017, the interstellar comet 2I/Borisov in ...

The total mass loss rate and outflow speed from its 3I/Atlas surface was used to infer its mass. The mass of 3I/ATLAS must be bigger than 33 billion tons. The diameter of its solid-density nucleus ...

Sometimes "the universe comes to us," writes the European Space Agency. On Friday it came really close, when comet 3l/ATLAS passed by us at a ― relatively ― short distance. What exactly is this ...

The pre-perihelion and post-perihelion observations of the interstellar interloper by Earth-based observatories and ...