This medication can cause a serious decrease of a certain type of white blood cells (neutropenia). To make sure you have enough white blood cells, your doctor will order lab tests before starting and while your are taking clozapine. Neutropenia may lower your ability to fight infections.
The Orbital Debris Problem. There are currently over thirteen thousand satellites and other large objects in orbit around the Earth, and there are countless smaller pieces of debris generated by spacecraft explosions and by collisions between satellites.
Whatever they may be called, they have much to tell us about our solar system. The three main types of space rocks are comets, asteroids and meteoroids. Comets are the dirty snowballs of space. They are bodies of ice, rock, gas and dust. The dirty snowball is the nucleus -- the solid center of the comet.