Zee3033

What is the moo made of, and how did it form? Learn about the moon's violent origins, how its phases shaped the earliest calendars, and how humans first explored Earth's only natural satellite half a century ago.

Exoplanets challenge the notion that we are alone in the universe. Learn what types exoplanets exists, the methods scientists employ to find them, and how many worlds might exist in the "Milky Way Galaxy".

Jupiter is the oldest and most massive world in the solar system. Learn about the planet's origin story, its "Great Red Spot" and oceanic moons, and how this ancient world influenced the formation of the solar system's planets.

How did the rings around Saturn form? How many moons does the planet have? See stunning NASA images of the gas giant studied by Christian Huygens and Giovanni Cassini.

Which planet in our solar system has the most moons --- Saturn or Jupiter? Learn some interesting facts about each planet's natural satellites.

From its blood-like hue to its potential to sustain life, Mars has intrigued human kind for thousands of years. Learn how the red planet formed from gas and dust and what its polar ice caps mean for life as we know it.