Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits ...

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

Mercury joins the night sky to complete a 7-planet alignment just after sunset for the end of February. Saturn leaves our ...

Mercury joins the night sky to complete a 7-planet alignment just after sunset for the end of February. Saturn leaves our ...

A planet-sized visitor possibly visited the solar system billions of years ago and permanently changed the cosmic neighbourhood by warping the orbital path of four outer planets of the system, a ...

Although it's being mistakenly promoted as a "rare planetary alignment," one of the best "planet parades" in half a century ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

The orbits of Jupiter, Saturn, Uranus and Neptune may have been forever changed by an enormous object that whizzed through ...

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

Claims of a "rare planetary alignment" are misleading; it's just visible planets. A true "golden conjunction" occurs on Sept.