Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

New research suggests that a massive, unidentified object might have passed through our Solar System billions of years ago, ...

Planetary scale model trails are letting cycling enthusiasts pedal their way through the cosmos. These trails are designed ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

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

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System ... 2024 — A new computer model can be used to detect ...

Emily Simpson has loved space since she was a 10-year-old kid celebrating her birthday at a planetarium. Now a recent Florida ...

A close encounter with a mysterious interstellar object could explain the current orbits of several of Earth’s largest ...

The James Webb Space Telescope has provided groundbreaking insights into a new type of exoplanet, fundamentally different ...

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear to line up in the sky from our perspective here on Earth," John Conafay, ...