The main camera onboard NASA's Hubble Space Telescope has been shut down after it encountered a hardware problem. <br />”<br />”The international space agency, however, in a statement said that the telescope will continue to perform science observations with its other three active instruments. <br />”<br />”It added that the defect in the Hubble Wide Field Camera 3 is being investigated. The camera is equipped with back up electronics that can be called to action if the need arises.<br />” <br />”The camera was installed by spacewalking astronauts during Servicing Mission 4 in 2009. Hubble is the first major optical telescope to be placed in space, providing an unobstructed view into the universe.<br />”<br />