TMT will couple unprecedented light collection area (almost 10 times more than one of the Keck telescopes) with diffraction-limited spatial resolution that exceeds Keck by a factor of 3. Relative to the Hubble Space Telescope (arguably the most revolutionary astronomical instrument of our generation), TMT will have 144 times the collecting area and more than a factor of 10 better spatial resolution at near-infrared and longer wavelengths.
