'Measuring the Universe provides a backbone of understanding to build on. Among its major strengths are its spare and uncluttered style, its good use of equations and figures, and its problem sets.' Physics Today
1. Introduction; 2. Gathering light - the telescope; 3. Sensing the light: detectors for the optical and infrared; 4. Imaging and astrometry; 5. Photometry and polarimetry; 6. Spectroscopy; 7. Adaptive optics (AO) and high contrast imaging; 8. Submillimeter and radio astronomy; 9. Interferometry and aperture synthesis; 10. X-ray and gamma-ray; Index.