Baryon Acoustic Oscillations

• theory: idealized localized overdensity and resulting rings of power
• observation: a feature in the correlation function
• applications: standard ruler

Gravitational Lensing and the Dark Universe

• lensing probes of galaxy dark halos
  cluster giant arcs; mass distribution
• weak lensing: theory
• weak lensing probes of large-scale structure
• Planck: dark matter map via CMB lensing
• the future: LSST

The Intergalactic Medium and Reionization

• IGM: Gunn-Peterson effect
• evidence for reionization; indications of when
• gas dynamics in the cosmic web

The Cosmic History of Star Formation

• probes of cosmic star formation
• the observed cosmic star formation rate
• open questions

Finale: Looking to the Future