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 ...

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

While the planets are technically always "aligned" along the same plane in our sky, seeing so many at once is a special ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

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First discovered in 2009, GJ 1214 b is described by the JWT team as being “sub-Neptune-sized” - smaller than the outermost ...

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 ...

SCIENTISTS have discovered a new super-Earth with an ‘eccentric’ orbit that swings it in-and-out of its star’s habitable zone ...

Mars, Jupiter, Saturn, Venus, Uranus and Neptune will be visible in the sky at the same time, with tonight’s new moon ...

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

Here’s how it works. A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets ...