Opinions expressed by Forbes Contributors are their own. Jamie Carter is an award-winning reporter who covers the night sky. A team of astronomers investigating the first known visitor from ...

A newly observed interstellar comet is the most pristine visitor from outer space ever seen in our Solar System, according to a pair of studies released Tuesday detailing its unique characteristics.

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

Comets are unpredictable, fleeting visitors in our sky, and C/2024 G3 (ATLAS) was no exception. This January, it graced the ...

such as in the case of the interstellar object 1I/2017 U1 ‘Oumuamua. Aside from the effects of outgassing, comet orbits are also constantly changing simply due to the competing gravitational pulls of ...

The Gemini Observatory in Hawai'i has captured a new and revealing image of a mysterious object that's likely the first interstellar comet humans have ever detected. The comet, called C/2019 Q4 ...

Caption An artist's depiction of the interstellar comet 'Oumuamua, as it warmed up in its approach to the sun and outgassed hydrogen (white mist), which slightly altered its orbit. The comet ...

Astronomers at the Gemini Observatory last week recorded an image of the second object ever observed from beyond our solar system.

Detected in 2019, the Borisov comet was the first interstellar comet known to have passed through our solar system. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...

"Our Sun (Sol) is marked by a black hexagon, and its orbital path is indicated by a grey solid line (top row only). Alpha Centauri's location and path are shown by a yellow star and a solid blue line ...

The interstellar object which passed through our ... Now scientists think it may be a comet after all, with valuable information about distant planetary systems. When studied by a team led by ...