A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post ...

There's a new race in space, but it's not where you might think. It's happening close to home – in the nearest bit of space, ...

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 ...

"With an orbital period of 570 days, it is a relatively cold gas giant planet," said Guðmundur Stefánsson of the University ...

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

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

Scientists found that an asteroid impact carved two massive canyons on the moon in minutes. High-speed debris helped shape ...

A team of scientists has proposed a groundbreaking theory suggesting that a massive interstellar object—potentially eight times the size of Jupiter—may have dramatically impacted the orbits of ...

NASA and European scientists explain how they calculate the probability of the space rock 2024 YR4 impacting our planet, and why it’s not yet time to worry.

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.