Quasar vs. Quark — What's the Difference?

A quasar (; also known as a quasi-stellar object, abbreviated QSO) is an extremely luminous active galactic nucleus (AGN), in which a supermassive black hole with mass ranging from millions to billions of times the mass of the Sun is surrounded by a gaseous accretion disk. As gas in the disk falls towards the black hole, energy is released in the form of electromagnetic radiation, which can be observed across the electromagnetic spectrum.

A quark () is a type of elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei.

A compact, extremely bright celestial object whose power output can be hundreds to several thousand times that of the entire Milky Way galaxy. Quasars are among the most distant objects in the universe and are generally considered to be a form of active galactic nucleus.

Any of a class of six fundamental fermions, two in each of the three generations, one having an electric charge of - 1/3 , the other, + 2/3 , comprising the down, up, strange, charm, bottom, and top quarks. Quarks are the basic components of all hadrons.

(galaxy) An extragalactic object, starlike in appearance, that is among the most luminous and (putatively) the most distant objects in the universe.

Any of the six quarks' associated antiparticles, the antiquarks.

A starlike object that may send out radio waves and other forms of energy; large red shifts imply enormous recession velocities

A soft, creamy, usually unsalted cheese traditional to central Europe and made from cow's milk that is coagulated by the lactic acid produced by bacteria rather than by the use of rennet.

(particle) In the Standard Model, an elementary subatomic particle that forms matter. They combine to form hadrons, such as protons and neutrons. Category:en:Nuclear physics

An integer that uniquely identifies a text string.

A soft creamy cheese, eaten throughout northern, central, eastern, and southeastern Europe as well as the Low Countries, very similar to cottage cheese except that it is usually not made with rennet.

The black-crowned night heron, Nycticorax nycticorax.

Hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3

Fresh unripened cheese of a smooth texture made from pasteurized milk, a starter, and rennet