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 ...

It actually follows its own tiny elliptical orbit around what is called the center of gravity (the barycenter) of the system, the sun and the orbiting planets. This barycenter is usually not equal ...

Located less than 20 light years away, HD 20794d could potentially be one of the most Earth-like planets found so far, ...

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

Earth's unusual orbit through hot and cold conditions tests the limits of tolerability for any known lifeforms.

Named HD 20794 D, the newly discovered exoplanet orbits a star similar to the Sun, and researchers believe it may be able to ...

The planet parade occurs when the planets' positions in their elliptical orbit around the sun line make them seem like they are close in the sky. As per Conafay, "It’s happening because of the ...

A planet that may support alien life has been discovered less than 20 light-years from Earth. The "promising" super-Earth - ...

UK researchers have confirmed the existence of a “super Earth” located 20 light-years away that could reveal the existence of ...

Astronomers have found two planets around two separate stars that are succumbing to their stars' intense heat.