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

But that includes exoplanets, alien worlds that orbit alien suns. Only eight planets call our solar system home. Or there might still be nine if some astronomers are correct about an as-yet ...

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

But of these planets, which is nearest to the sun? Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, ...

Study reveals an interstellar object's impact on planetary orbits, reshaping solar system dynamics. Discover how simulations ...

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

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

Choose from Solar System Planet Order stock illustrations from iStock. Find high-quality royalty-free vector images that you won't find anywhere else. Video Back Videos home Signature collection ...

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

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