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

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

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

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago.

Samples of Bennu were brought back to Earth by NASA’s OSIRIS-REx spacecraft in 2023. Now, a pair of newly published papers ...

Images captured by NASA's Solar Dynamics Observatory have revealed that "coronal loops" give off subtle flashes of ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that ...

An exoplanet is a planet outside our solar system that usually orbits a star in our galaxy. More than 7,000 have been found ...

Pluto-Charon Formation Scenario Mimics Earth-Moon System Jan ... a revised solar composition that potentially reconciles ... Swirling Polar Vortices Likely Exist on the Sun Nov.