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

If you were to perfectly follow the steps in An Idiot's Guide to Making a Solar System, you should eventually find yourself ...

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

The research, yet to be peer-reviewed, sheds light on what could have changed the orbits of several planets in the solar ...

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 ...

A new study suggests that a planet-sized object may have passed through the solar system billions of years ago.

Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds up to 33,000 km/h, the winds make up the fastest jet-stream of its kind ever ...

Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But ...

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

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

A new study implies that in the past, moons in our solar system may have had rings just like planets do — deepening the ...

Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds ...