It's been nearly a month since the second interstellar object, C/2019 Q4 (Borisov), was detected. And this newly identified object could potentially be studied, according to a new study. The research, ...

A massive interstellar object passing through our solar system during its formative years likely altered the orbits of planets into trajectories observed today, a new study says. Interactions with ...

Comet 2I/Borisov, the second-ever discovered interstellar object, has a familiar look to it, similar to the other comets that are common throughout our solar system, according to a new study. This ...

A mysterious comet from beyond our solar system is giving astronomers a rare glimpse into alien worlds — and it may have ...

A rare comet from another star system is revealing just how different alien solar systems may be from our own.

A pair of scientists may have figured out interstellar asteroid ‘Oumuamua’s secret — and it’s not an alien spaceship after all. When the first known interstellar object passed through our Solar System ...

Astronomers have detected unusually high concentrations of methanol in interstellar comet 3I/ATLAS, with ALMA observations indicating it is among the most methanol-enriched comets measured to date.

As grad school approached for astrophysics senior Atsuhiro Yaginuma, he did not know what he wanted to study. That was until July 1, when the third ever interstellar object — a body originating from ...

Our solar system may not be as isolated as we once thought. According to a new study, more than 1 million interstellar objects could be lurking in the outer reaches of our cosmic neighborhood, quietly ...

The next time a space rock races through our solar system from beyond, humans will be a little more prepared to unlock its secrets. To date, astronomers have identified two interstellar objects that ...

Interstellar space exploration has long been the stuff of science fiction, a technological challenge that many engineers believe humans just aren’t up to yet. But an ongoing study by a group of ...