This may explain the strange properties of the orbits of our solar system's planets, which are not quite perfectly circular, and all lie on slightly different planes. NASA artist’s conception of ...

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

"This planet could play a pivotal role in future missions... to search for biosignatures indicating potential life, " Dr. Michael Cretignier said.

Brown’s thinking is that a planet-sized object in the darkest reaches of the solar system could be tugging on the orbits of the ... right time with the right equipment,’ Dr Bloomer added.

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.

All of our solar system’s planets are lining up to parade ... It isn’t a perfect line of planets, because their orbits are tilted slightly, but it is fairly close. The multiverse could be ...

While most models of solar system formation predict perfectly circular and coplanar orbits for the planets, reality presents a slightly different picture. Successful Simulations: Approximately 1% ...

The boundaries of astronomical discovery keep getting pushed, especially in the 21st century with new technologies and equipment being ... be discovered in the solar system to date.

“We predict the existence of an Earth-like planet and several TNOs on peculiar orbits in the outer solar system,” write the authors, Patryk Sofia Lykawka of Kindai University, Japan and ...

As well as planets and moons, the solar system also contains dwarf planets, which are too small to be considered planets. The best known of these is Pluto, an ice dwarf that orbits far from the ...