Space Facts

INTRODUCTION Over a hundred and fifty moons orbit  the solar system's planets.  And one of these moons calls Earth home.  The moon become fashioned approximately 4. five billion years in the past when,  in line with one theory, the Earth slammed  into every other early planet.  Debris from this collision commenced orbiting Earth  and accumulated, forming the modern-day moon. MOON The moon is the 5th biggest herbal  satellite tv for pc withinside the sun system,  with a diameter simply beneath neath the width of China.  It's composed of an iron wealthy core,  plus a mantle and crust containing minerals  manufactured from magnesium, oxygen, and silicon.  The moon's floor becomes as soon as geologically active  and is included in an ocean of magma.  But today, aside from lines of water ice,  the floor is included in dirt and rocky debris. Countless craters dot the moon's floor.  Each is fashioned via way of means of items including meteoroids,  comets, and asteroids crashi