Quasar

:This article is about quasars as they relate to astronomy. See Q-Zar for the lasertag system and Quasar (comics) for the comic book character.

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A quasar (contraction of QUASi-stellAR radio sources) is an astronomical object that looks like a star in optical telescopes (i.e. it is a point source), and has a very high redshift. The general consensus is that this high redshift is cosmological, the result of Hubble's law, which implies that quasars must be very distant and must emit more energy than dozens of normal galaxies.

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Some quasars display rapid changes in luminosity, which implies that they are small (an object cannot change faster than the time it takes light to travel from one end to the other; but see J1819+3845 for another explanation). The highest redshift currently known for a quasar is 6.4 http://www.sdss.org/news/releases/20030109.quasar.html.

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Q-Zar: Q-Zar (called Quasar in Ireland and the UK) is a type of lasertag that was developed in Ireland....

Lasertag: Lasertag is an indoor sport loosely related to (as the name would suggest!) the original game of tag. While seen by some as having more relation to the sport of paintball, lasertag is quite different, usually featuring less realistic environments such as mazes, different modes of gameplay, and is us...

Quasar (comics): Quasar (Wendell Elvis Vaughn) is a fictional character, a superhero in the Marvel Comics universe. He is one of Marvel's "cosmic" heroes, a character whose adventures frequently take him into outer space or other dimensions. He starred in an eponymous monthly ongoing series that ran for sixty issu...

Quasar related Images and Photos (experimental)

Annihilation: Conquest - Quasar #1 Cover: Quasar Fighting

Annihilation: Conquest #6 Cover: Adam Warlock Quasar Star-Lord and Ronan The Accuser

Realm of Kings #1 Cover: Quasar

Guardians Of The Galaxy #1 Group: Rocket Raccoon Star-Lord and Quasar