An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

Scientists suggest an interstellar visitor may have altered planetary orbits in our Solar System, reshaping trajectories of ...

Every day, about 48.5 tons of space rock hurtle towards Earth. Every day, about 48.5 tons of space rock hurtle towards Earth.

A new study suggests that a planet-sized object may have passed through the solar system billions of years ago.

The research, yet to be peer-reviewed, sheds light on what could have changed the orbits of several planets in the solar ...

Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the ...

Conduct more detailed simulations to refine the characteristics of the interstellar object and its encounter with the solar system. Search for observational evidence of such past encounters in the ...

A new study, currently under review for publication, suggests that an ancient cosmic visitor might have significantly altered the orbits of our solar system's giant planets. Scientists propose that ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.