The Meteorite HuntersPlanet Earth is under attack: every day, millions of meteoroids plummet through our atmosphere. Fortunately, the majority are minuscule too small to survive the scouring of Earths atmosphere, let alone qualify as planet killers. Those that do make it to Earth offer a unique glimpse of the world beyond our little planet. They are an invaluable scientific resource. The oldest material on Earth 2. 5 billion years older than the solar system comes from a