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, ...

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

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

Four planets will be in the parade in January while seven will align in February. Here's how to see the events.

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

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 ...

Found by Dr Michael Cretignier of the University of Oxford, the planet has a mass six times greater than Earth's and orbits ...

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