Celestial mechanics Celestial mechanics Celestial mechanics is the branch of astronomy that deals with the motions of objects in outer space. Historically, celestial mechanics applies principles of physics (classical mechanics) to astronomical objects, such as stars and planets, to produce ephemeris data. As an astronomical field of study, celestial mechanics includes the sub-fields of orbital mechanics, which deals with the launching and orbits artificial satellites, and lunar theory, a specialty which deals with the complications of the orbit of the Moon. Modern celestial mechanics tends to divide between five broad fields of study: All of the above fields overlap, but are sometimes
Fear Is the Key Fear Is the Key Fear Is the Key is a 1961 first-person narrative thriller novel by Scottish author Alistair MacLean. In the prologue, set in May 1958, John Talbot, owner of Trans Carib Air Charter Co is at an airfield in British Honduras, awaiting radio contact with one of his aircraft en route to Tampa, Florida. Not long after establishing contact the aircraft is attacked by a P-51 Mustang, after which all contact is lost. Two years later, Talbot is on trial for robbing a bank. At a point where his guilt is in doubt, new information comes to light