The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

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

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Stargazers will be treated to a dazzling six-planet "alignment" this January.

This month offers incredible views of six planets, including Venus-Saturn conjunction. See the dates for all of 2025's ...

Stargazers can witness a rare 'planet parade' in January and February 2024, where six planets align prominently in the night ...

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, ...

It actually follows its own tiny elliptical orbit around what is called the center of gravity (the barycenter) of the system, the sun and the orbiting planets. This barycenter is usually not equal ...

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

A rare celestial event where seven planets align is visible in the UK skies. Discover how, when, and where you can observe ...

While claims of a “rare alignment” are overblown, you can still see up to six planets in the night sky this weekend. Here's ...