The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show ...

Hernandez runs the planetarium at UTRGV and says all the planets in our solar system will be visible tonight. Six planets will be visible to the naked eye and eight can be seen if you have a ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar system was the only planetary system known to humans. We had no proof other ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

And being so close to the sun, it will be difficult to see. With eight planets in our solar system, they all have some very interesting traits. Here's a quick look at the planets aligning on this ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

Aimed at the nearby star PDS 70, the James Webb Space Telescope is watching newborn planets take shape before our eyes in ...

According to a pre-print research paper, which is yet to be peer-reviewed, an object 8 times ... orbits of our solar system's planets, which are not quite perfectly circular, and all lie on ...

An object eight times ... four of the solar system's planets onto a different course. A planet-size object that possibly once visited the solar system may have permanently changed our cosmic ...

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...