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 ...

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

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

Further simulations on flybys into the inner Solar System revealed one of our own planets might be flung out of the ballpark ...

Starting up again Saturday, a sweeping view of our solar system will glow in the night sky. The planetary alignment, or a ...

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

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

In October 2020, a van-sized robotic spacecraft briefly touched down on the surface of Bennu, a 525-metre-wide asteroid 320 ...

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

What was once the world's largest solar power plant of its type appears headed for closure just 11 years after opening, under ...