The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

Aimed at the nearby star PDS 70, the James Webb Space Telescope is watching newborn planets take shape before our eyes in ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar system was the only planetary system known to humans. We had no proof other ...

An object eight times the mass ... onto a different course. A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the ...

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet ... could reshape our understanding of the Earth-Moon system and the broader solar system.

improving our understanding of planet formation and potentially shedding light on the origins of our own Solar System," says David Cont from the Ludwig Maximilian University of Munich, Germany ...

This may explain the strange properties of the orbits of our solar system's planets, which are not quite ... most likely scenario involved an object eight times the mass of Jupiter zipping nearly ...

The eight planets in our solar system orbit the sun in roughly the same plane, because they all originally formed from the same disc of debris around the sun. The line the sun traces across the ...