What they found was incredible. The cloud is located within 26 light-years of the galaxy's center, where a black hole lurks. The speed of the gas cloud tells us that the black hole is 300 million times more massive than our Sun. The Space Telescope got an upgrade in other key areas as well. The tools for data storage are very important.
Information gathered by Hubble is sent back to Earth for data analysis.
Depending on where the telescope is and what it is doing some of this data is sent live and some of it must be temporarily stored on board the spacecraft.