Scientific Colloquium
November 21, 2003
Many of the dramatic advances in
astronomy in the past few
decades have come from the opening
of new windows of the
electromagnetic spectrum; most of
these are made possible by the
availability of space platforms.
Very High Energy Gamma Ray
astronomy (E > 100 GeV) using
ground-based techniques has
recently made remarkable advances,
particularly in the realm of
extragalactic studies. The
detection of TeV cosmic cannons,
relativistic jets from active
galactic nuclei, complements the
work of EGRET on the Compton Gamma
Ray Observatory. New
observatories, such as VERITAS,
will perform the same function
with GLAST.