Just yesterday, the NASA engineers who are working on a remote-controlled reboot of the malfunctioning Hubble Space Telescope were thrilled with their progress: "Everything's going perfectly," a NASA spokeswoman said, and she estimated that the telescope would resume sending science data back to earth today. But today NASA reported that engineers had run into a problem while powering up the system after its reboot. After the Hubble's main data handling computer went on the fritz in late September, engineers devised a plan to switch over to the telescope's "Side B" backup computer, which had been dormant for 18 years. NASA said yesterday that the backup system was successfully brought up, and that the only task that remained was testing and calibrating the telescope's scientific instruments to ensure they were working properly with the new computer.
However on Friday NASA posted a notice on its website saying "the activation of the ...