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spec: It may be that Michael thought that if he went to the chief engineer , nothing would happen and that it is the Procurement Agent 's having talked to the chief engineer that made a difference . It will not establish new policies . There are ways to use SGML as intermediate format , and others have used it successfully . Wind and solar power are also being discussed as viable alternatives to oil . Science Browse TopicsThis includes links to government agency pages on aerospace , air pollution , birds , conservation , earth sciences , electricity and electronics , environmental protection , information technology minerals and mining , nuclear power , oceanography , patents and trademarks , pest and weed control , radiation , robotics , scientific research , solar energy , space exploration , standards , water management , weather , wildlife management . Flight controllers will not deploy the port wing tonight to allow time to understand whether the solar wing that has deployed is properly tensioned . There has been growing interest in naturally occurring compounds with anti-cancer potential . At present , residents also need planning permission to install a simple solar water heater on their own roof ( which could generate around 70 % of water heating needs ) , and this clearly also needs addressing as many are discouraged by this . On the afternoon of February 18 , 1930 after a meticulous search begun years earlier at Lowell Observatory , Clyde Tombaugh discovered the ninth planet in our solar system : Pluto .