Mercury is the smallest planet in the Solar System and also the closest planet to the Sun. Mercury orbits the Sun at an ...

Lake Effect astronomy contributor Jean Creighton shares some myths behind some of our solar system’s most famous moons and ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Explore daily insights on the USA TODAY crossword puzzle by . Uncover expert takes and answers in our crossword blog.

Titan, Saturn's largest moon and the second-largest in the solar system, is a world unlike any other. With a dense atmosphere ...

Titan, Saturn's largest moon, could harbor life in its hidden underground ocean – yet Titan's entire aquatic biosphere may ...

The NASA/ESA Cassini-Huygens mission explored Saturn and its moons from 2004 to 2017, providing the most detailed images and ...

The solar wind pushes some of the gas and dust away from the comet, forming those beautiful tails we see. A comet actually ...

In 2025, space exploration enters a new era with missions to the Moon, Mars, and beyond, led by NASA, ISRO, ESA, JAXA, and ...

Could aliens exist on Saturn’s moon Titan? With its thick atmosphere and methane lakes, Titan is one of the most promising ...

Saturn’s moon Titan has always stood out among the celestial bodies in our solar system. It is the only moon with a thick, hazy atmosphere, and it's often compared to a primitive Earth.

New research reveals more about why Saturn's large moon tilts, a puzzle that has intrigued scientists for decades.