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

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

Our solar system, a cosmic ballet of planets held together by gravity and inertia, is uniquely structured compared to many ...

An exoplanet is a planet outside our solar system that usually orbits a star in our galaxy. More than 7,000 have been found ...

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

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

HD 20794 d completes its orbit just shy of two Earth years, placing it well within reach of conditions that might harbor life ...

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

The exoplanet, which has been named HD 20794 d, orbits in the ‘habitable zone’ of a nearby star similar to our sun.

Scientists found an intriguing world in our galaxy.

Through the end of February, all the planets in our solar system will visibly align in the sky, like a trope taken straight ...

January brings a stunning spectacle for star watchers, a rare celestial alignment wherein several planets appear across the ...