For decades, we believed there were nine planets in our solar system—until Pluto was reclassified in 2006. But what if ...

The article humorously ranks planets based on wealth, characterizing Jupiter as the richest due to its massive size and possessions, and Mars as a str ...

A comical planetary beauty contest is described, highlighting the unique traits of each planet: Mercury’s fiery nature, Venus ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

Explore Ceres, the largest asteroid in our solar system, and discover its remarkable ancient ocean and ice-rich crust.

Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision.

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

In Huntsville, a city fueled by defense and aerospace, there is anxiety but also cautious optimism that federal investment ...

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale ...