The spectrograph, which was installed on Hubble Space Telescope during a 1997 shuttle service mission, suffered a power supply failure in 2004 and has since been in safe mode for five years, NASA said. But the work of astronauts Mike Massimino and Mike Good today is enabling the instrument to resume the hunt for the most interesting and terrifying objects known to be in the universe: black holes from which the gravitation strength is so insentse that light waves do not escape. Nothing is known as to the center of a black hole today. The fix today will enable humanity to learn more.
NASA has a very high confidence that the STIS will go operational after complete functional tests are conducted tonight (Sunday). Overall, mission planners are thus far giving the mission a high 'A' or over 97% for task completion and success. Astronomers are quite pleased with what essentially will be a new telescope with capability far exceeding those in the space telescope's past. Humanity will see better and further than ever before with the unique and publicly cherished orbiting observatory. MORE from NASA-TV.