An image montage of the distant quasar 3C 273. The image on the left was taken with the Wide Field Planetary Camera 2, while the image on the right was taken with the much more poweful Advanced Camera for Surveys, revealing many more details of the quasar's host galaxy. Image Credit for the WFPC2 image: NASA and J. Bahcall (IAS). Image Credit for the ACS image: NASA, A. Martel (JHU), H. Ford (JHU), M. Clampin (STScI), G. Hartig (STScI), G. Illingworth (UCO/Lick Observatory), the ACS Science Team and ESA
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