A new astronomical study suggests that Earth could one day be ejected from the solar system, not by the aging of the Sun, but by the unpredictable trajectory of a rogue star. While such a scenario ...

Mercury will be in retrograde until Dec. 15, the last of four times it appears to move backward in the sky this year. For at least a portion of 2024, nearly every planet in our solar system has ...

The BepiColombo spacecraft flew less than 200 miles from Mercury's surface and photographed volcanic plains and icy craters.

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 as the orbit of Mars.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

This phenomenon known as a "planet parade," will feature Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune all present at the same time along a line in the night sky on Friday, NASA says.

How Did the Solar System Form? The tale of our sun may begin with another star: a predecessor whose fiery death brought about the birth of our solar system.

Despite what you may have heard or learned in school, the sun is NOT the center of the solar system.

Humankind accomplished new feats in space this year, including scooping up some of the moon’s farside and launching a probe to Jupiter’s moon Europa.

Named for the emissary of the gods, Mercury is the patron planet of communication and thieves. Archivist – stock.adobe.com The fastest-moving planet in our solar system, Mercury, goes retrograde ...

Are tiny black holes zipping through our solar system? Scientists hope to find out Scientists have studied black holes with the mass of a star for decades.

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 as the orbit of Mars.