Introduction For many years, students around the world learned that our Solar System has nine planets, with Pluto as the smallest and farthest one. But in 2006, the International Astronomical Union (IAU) made a historic decision: Pluto is no longer…
1. Introduction: What is the Kuiper Belt? Have you ever wondered what lies beyond Neptune, the last of the eight planets in our Solar System? Scientists discovered that this region is not empty. It is filled with icy worlds, dwarf…
Look up at the night sky. Whether it’s the brilliant crescent of Venus, the steady red glow of Mars, or the distant twinkle of Jupiter, one thing unites these celestial wanderers: they are round. But have you ever stopped to…