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

An object we thought belonged to the most common category of planet in the galaxy has turned out to be something we've never ...

Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds ...

The solar system consists of 8 planets, including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Each ...

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 ...

Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But ...

a star-size object visited the solar system and tweaked these planets' paths. The team carried out 50,000 simulations of such events, using computer models of the four outer planets, each over 20 ...

Astronomers recorded extreme winds of 33,000 kph on exoplanet WASP-127b, a 'hot Jupiter' with low density orbiting close to its star. Advanced atmosph ...

An object we thought belonged to the most common category of planet in the galaxy has turned out to be ... because we have nothing directly analogous to them here in our Solar System. Both ...

The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.