The Solar Dynamics Observatory (SDO) carries the Atmospheric Imaging Assembly (AIA), which provides high-resolution, full-disk images of the solar corona and transition region up to 0.5 R_⊙ above the solar limb. The AIA consists of four telescopes with normal-incidence, multilayer-coated optics that capture images in seven extreme ultraviolet (EUV) band passes. These include Fe XVIII (94 Å), Fe VIII, XXI (131 Å), Fe IX (171 Å), Fe XII, XXIV (193 Å), Fe XIV (211 Å), He II (304 Å), and Fe XVI (335 Å). One telescope observes C IV (near 1600 Å) and the nearby continuum (1700 Å), enabling coalignment with images from other telescopes. The AIA's temperature diagnostics cover a range from 6 × 10⁴ K to 2 × 10⁷ K. Launched on 11 February 2010, the AIA advances understanding of solar variability and energy storage and release into the heliosphere and geospace. It provides high signal-to-noise ratio images, high temporal resolution, and full-disk coverage. The AIA's design includes four 20-cm telescopes with 0.6-arcsec pixels and 4096 × 4096 CCDs, enabling detailed temperature maps and high-resolution imaging. The AIA also includes detectors with high full well capacity and low readout noise, and a standard observing program that can be adjusted for specific scientific objectives. The AIA's capabilities allow for the study of the magnetic field's dynamic structure, coronal heating, transients, connections to geospace, and coronal seismology. The AIA's design includes advanced optics, filters, and detectors, enabling high-resolution imaging and data processing. The AIA's data are processed and archived, providing valuable information for solar and heliospheric physics research.The Solar Dynamics Observatory (SDO) carries the Atmospheric Imaging Assembly (AIA), which provides high-resolution, full-disk images of the solar corona and transition region up to 0.5 R_⊙ above the solar limb. The AIA consists of four telescopes with normal-incidence, multilayer-coated optics that capture images in seven extreme ultraviolet (EUV) band passes. These include Fe XVIII (94 Å), Fe VIII, XXI (131 Å), Fe IX (171 Å), Fe XII, XXIV (193 Å), Fe XIV (211 Å), He II (304 Å), and Fe XVI (335 Å). One telescope observes C IV (near 1600 Å) and the nearby continuum (1700 Å), enabling coalignment with images from other telescopes. The AIA's temperature diagnostics cover a range from 6 × 10⁴ K to 2 × 10⁷ K. Launched on 11 February 2010, the AIA advances understanding of solar variability and energy storage and release into the heliosphere and geospace. It provides high signal-to-noise ratio images, high temporal resolution, and full-disk coverage. The AIA's design includes four 20-cm telescopes with 0.6-arcsec pixels and 4096 × 4096 CCDs, enabling detailed temperature maps and high-resolution imaging. The AIA also includes detectors with high full well capacity and low readout noise, and a standard observing program that can be adjusted for specific scientific objectives. The AIA's capabilities allow for the study of the magnetic field's dynamic structure, coronal heating, transients, connections to geospace, and coronal seismology. The AIA's design includes advanced optics, filters, and detectors, enabling high-resolution imaging and data processing. The AIA's data are processed and archived, providing valuable information for solar and heliospheric physics research.