A fresh study of the Kuiper Belt’s structure has revived that far-out question, pointing to a possible Earth-sized ...

A newly discovered space rock zoomed safely by Earth on Wednesday (Oct. 15) at only about a quarter of the average distance ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Space has a way of making scientists throw out their textbooks. Just when astronomers think they understand how the universe ...

Astronomers have been actively hunting for a ninth planet in the solar system for almost a decade. But a new study has suggested there may be another hidden world waiting to be found. | Credit: ...

Astronomers have discovered asteroid 2025 SC79, a skyscraper-sized space rock orbiting the sun in just 128 days. the ...

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Over the past seven decades, thousands of sophisticated spacecraft have been launched on ambitious missions to look down on ...

It’s often assumed that Earth is somehow separate from the rest of the universe. Yet changes in environments across the solar ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...