A powerful flare unleashed a severe solar storm that caused auroras and GPS disruptions on Earth.

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. When ...

Scientists tracked active solar region NOAA 13664 for 94 days, showing how persistent magnetic complexity drives flares and space weather.

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...

Back in 2019, a consortium of scientists predicted August 2025 as the peak of the solar activity cycle. But where are we now? When you purchase through links on our site, we may earn an affiliate ...

A NASA mission, IMAP, and two more spacecraft that will study space weather are traveling through space atop a single SpaceX rocket. By Kenneth Chang A SpaceX rocket launched on Wednesday morning ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. 2023 KQ14, nicknamed “Ammonite,” is a trans-Neptunian object ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...