This icy moon was discovered by the French astronomer Audouin Dollfus in 1966. Dr. Jemison is a medical doctor and a surgeon, with engineering experience. She was accepted into NASA's astronaut program in 1987. Dr. Jemison founded the International Science Camp in Chicago in 1994, a program designed to interest children in science and space. JETS Jets are blasts of particles that are emitted by an active galactic nucleus or a pulsar.
Jets only occur in pairs, going in opposite directions.
It is called the jet stream because the first people who encountered the jet stream were pilots who described it as though the wind was being propelled from a jet engine. A joule is the amount of work done by a force of one newton acting through one meter. JPL JPL stands for Jet Propulsion labratory. JPL is managed for NASA by the California Institute of Technology. JPL develops robotic devices for exploring the Solar System.