universetoday.com
NASA Considering Robotic Mission to Save Hubble - Universe Today
NASA announced on Tuesday that it was officially considering sending a robotic mission to save the Hubble Space Telescope, instead of de-orbiting it in a few years. The agency has called for proposals from the aerospace community to come up with a robot that can be controlled from the ground, and perform the complex upgrades and repairs that previously required astronauts. They need to hurry, though, since the observatory is expected to begin failing around 2007.