Today was an important day for astronauts on the Atlantis space shuttle as they managed to repair a spectrograph who didn’t work for a long time. Yesterday, two astronauts repaired a camera, while today Michael Massimino and Michael Good repaired the spectrograph of the Hubble Space Telescope. The two astronauts along with their colleagues who repaired the camera had to go for a space walk in order to repair the two devices of the Hubble.

Massimino and Good were announced before the mission that their colleagues repaired two channels of the camera, while the third doesn’t work. However, NASA along with John Grunsfeld (one of the astronauts who made the repairs) said that this was a huge success as the “power is restored” thanks to the two science channels which carry 95% of the output.

For the moment NASA cannot tell if the today’s spacewalk was just as successful, but we should hear more soon. In the following days, the Atlantis astronauts will make two other spacewalks in order to complete their mission. Thanks to their work, the Hubble Telescope will perform once again at almost full potential.

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