The EAGLE instrument is a Multi-Object Adaptive Optics (MOAO) fed, multiple Integral Field Spectrograph (IFS),
working in the Near Infra-Red (NIR), on the European Extremely Large Telescope (E-ELT). A Phase A design study
was delivered to the European Southern Observatory (ESO) leading to a successful review in October 2009. Since that
time there have been a number of developments, which we summarize here. Some of these developments are also
described in more detail in other submissions at this meeting.
The science case for the instrument, while broad, highlighted in particular: understanding the stellar populations of
galaxies in the nearby universe, the observation of the evolution of galaxies during the period of rapid stellar build-up
between redshifts of 2-5, and the search for 'first light' in the universe at redshifts beyond 7. In the last 2 years substantial
progress has been made in these areas, and we have updated our science case to show that EAGLE is still an essential
facility for the E-ELT. This in turn allowed us to revisit the science requirements for the instrument, confirming most of
the original decisions, but with one modification.
The original location considered for the instrument (a gravity invariant focal station) is no longer in the E-ELT
Construction Proposal, and so we have performed some preliminary analyses to show that the instrument can be simply
adapted to work at the E-ELT Nasmyth platform.
Since the delivery of the Phase A documentation, MOAO has been demonstrated on-sky by the CANARY experiment at
the William Herschel Telescope.