An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post ...

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 ...

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

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Researchers say there’s a 1.3 percent chance that the space rock 2024 YR4 could strike our planet — but not until December ...

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 ...

Beyond Neptune lies the Kuiper Belt, a vast expanse of icy bodies that may hold clues to the solar system’s formation. These ...

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

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