The first interstellar object to be confirmed was 1I/2017 U1, more commonly known as 'Oumuamua. It was discovered with the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) and ...

Caption This artist's impression shows the first interstellar object discovered in the Solar System, `Oumuamua. Observations made with the NASA/ESA Hubble Space Telescope and others show that the ...

Oumuamua and Comet Borisov in 2017 and 2019, respectively, created a surge of interest. What were they? Where did they come ...

Last fall, the scientific community went into a minor frenzy. A hunk of interstellar material had been sucked into the ...

What’s more, Webb used its Near Infrared Camera (NIRCam) instrument to observe glowing interstellar gas and dust illuminated ...

A new study suggests that a close encounter with a massive interstellar object, possibly eight times the mass of Jupiter, may have significantly altered the orbits of the four outer planets in our ...

Astronomers initially called it "1I/2017 U1" - with the "I" standing for interstellar, since the object's trajectory strongly suggested it came from another star system. It represented the first ...

The nature of these objects remains a mystery, but their features could suggest a new type of interstellar body, the researchers note. The study describes that both objects exhibit an extremely ...