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

Jan. 21. A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There ...

A similar parade of planets took place last June, but only two planets could be seen without any special equipment. This time, four are visible to the naked eye.

“Saturday evening, January 18: Venus and Saturn will appear nearest to each other. As evening twilight ends at 6:15 p.m. EST, ...

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

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

Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy, which has baffled ...

The planets in our solar system have lined up a surprise for astrophiles and skygazers. You will likely have heard the news ...

Planets in our solar system are all set for a surprise for astrophiles and sky gazers this year. You'll likely have heard news that a 'planetary alignment' is v ...

In January, stargazers will be able to see four bright planets, the close dance of Venus and Saturn, Mars at opposition, and ...

Our sun is a lonely star. At least half the stars in our galaxy have binary companions. This was nicely illustrated in the ...