Memory Alpha is a collaborative project to create the most definitive, accurate, and accessible encyclopedia and reference for everything related to ''Star Trek''. The English language version was started in 2003 as an independent wiki and now consists of more than 50,000 articles and 50,000 images.
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Memory Alpha is a collaborative project to create the most definitive, accurate, and accessible encyclopedia and reference for everything related to Star Trek. The English-language Memory Alpha started in November 2003, and currently consists of 53,522 articles. If this is your first visit, please read an introduction to Memory Alpha.
- 7 May 2022
- Actor Kenneth Welsh, who played Senna Tal in the Star Trek: Discovery third season episodes "People of Earth" and "Forget Me Not" has passed away on 5 May 2022 at the age of 80. 
- 6 May 2022
- Actor Michael G. Hagerty, who appeared in two episodes of Star Trek: The Next Generation has passed away on 29 April 2022 at the age of 67. 
Designed as a starship-based version of the hand-held phase-pistol, the phase cannon was rated for a maximum power output of five hundred gigajoules. The cannons were mounted on retractable turrets which extended from the ship's hull when deployed and rotated as they were being targeted. Like phase-pistols, they emitted a concentrated beam of energy that could be set at different yields. The phase cannon assembly was equipped with multiphasic emitters and had a maximum yield of eighty gigajoules. Aboard an NX-class vessel, the assembly was located on F Deck and could be accessed through a hatch near the torpedo room.The cannons were first installed aboard Enterprise in 2151. They were generally more powerful than spatial torpedoes and were therefore more effective in a firefight. Although they were not always powerful enough to penetrate the defenses of enemy vessels, they proved to be an integral part of the ship's defenses throughout the early 2150s.
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