  Modern cosmology poses deep and unavoidable questions for fundamental
physics. In this plenary talk, delivered in slightly different forms at the
{\it Particles and Nuclei International Conference} (PANIC05) in Santa Fe, in
October 2005, and at the {\it CMB and Physics of the Early Universe
International Conference}, on the island of Ischia, Italy, in April 2006, I
discuss the broad connections between cosmology and particle physics, focusing
on physics at the TeV scale, accessible at the next and future generations of
colliders
