Read the online Star Witness news story on preparations for Servicing Mission 4
Click here to read how the historic, May 2009 mission unfolded, day by day.
Check out our features on the people, from scientists to science writers, who play a role in the Hubble mission.
SM4 Image Gallery:
View mission photos
SM4 Video Gallery: View mission videos
HST Trivia: Fun facts about Hubble
SM4 Q&A: Commonly asked questions
Hubble Space Telescope lithograph:
Preview and download a PDF on the telescope
SM4 glossary: Look it up here!
the steps of a
servicing mission in this
activity based on SM3B
Servicing Mission 4
epic, May 2009 journey to service Hubble.