Only eight planets call our solar system home. Or there might still be nine if some astronomers are correct about an as-yet undiscovered large body out past Neptune. On the other hand, if you’re ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

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

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

Astronomers using the James Webb Space Telescope (JWST) have uncovered a planet so extraordinary it has defied all existing ...

A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets, a new study suggests.

With each mass, she modeled 2 million years of orbit to find what kind of architectural impact each mass would have on our solar system. Specifically, she tracked changes to the other planets ...

This alignment causes the apparent paths of the other planets to trace a consistent ... and seven of our solar system's planets will be visible all at once just after sunset.

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

However, this year a powerful new telescope is coming online that could prove once and for all that there really is a ninth planet in our Solar System. The same year that Pluto was ignominiously ...

Starting up again Saturday, a sweeping view of our solar system will glow in ... That means the Sun and the “Red Planet” are directly opposite from each other with Earth in the middle.