Baltimore ? The main camera on the Hubble Space Telescope came back to life Friday for the first time in nearly two weeks after NASA engineers switched to a backup power system, the space agency announced.

The Advanced Camera for Surveys shut down June 19 after voltage readings exceeded the acceptable range. The switchover to the backup system began Thursday afternoon and was completed Friday morning, NASA said.

The camera is scheduled to resume observations Sunday night. Other instruments on the orbiting telescope have continued to operate during the outage.