Get Pluto facts. Learn about the dwarf planet, which was once considered the ninth planet of the solar system.| Science Notes and Projects
Explore Saturn facts with this detailed guide covering the planet's rings, moons, atmosphere, structure, missions, and viewing from Earth.| Science Notes and Projects
Learn about the colors of the stars from hottest to coldest and see why there aren't any green or purple stars.| Science Notes and Projects
Learn what a nova is. Get facts about novae and supernovae, including how they form, the difference between them, and famous examples.| Science Notes and Projects
Learn about a nebula in astronomy. Discover what a nebula is, types of nebulae, and their role in a star's life cycle.| Science Notes and Projects