TALK ABSTRACT:
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Constellation-X, with more than 100 times the collecting area of
any previous spectroscopic mission operating in the 0.25-40 keV bandpass,
will enable high-throughput, high spectral resolution studies of sources
ranging from the most luminous accreting supermassive black holes in
the Universe to the disks around young stars where planets form.

This talk will review the updated Constellation-X science case,
released in booklet form during summer 2005.  The science areas where
Constellation-X will have major impact include the exploration of the
space-time geometry of black holes spanning nine orders of magnitude in
mass and the nature of the dark energy and dark matter which govern the
expansion and ultimate fate of the Universe.  Constellation-X will also
explore processes referred to as "cosmic feedback" whereby mechanical
energy, radiation, and chemical elements from star formation and black
holes are returned to interstellar and intergalactic medium, profoundly
affecting the development of structure in the Universe, and will also
probe all the important life cycles of matter, from stellar and planetary
birth to stellar death via supernova to stellar endpoints in the form of
accreting binaries and supernova remnants.  This talk will touch upon
all these areas, with particular emphasis on Constellation-X's role in
the study of Dark Energy.