Browsing: IRIS

NASA’s Interface Region Imaging Spectrograph (IRIS) is a solar observation mission designed to study the Sun’s chromosphere and transition region, the critical interface between the Sun’s surface (photosphere) and its outer atmosphere (corona). Launched in June 2013, IRIS uses an ultraviolet telescope and spectrograph to capture high-resolution images and spectra of solar material in these regions. By observing the movement and interaction of solar material, IRIS aims to enhance our understanding of the processes that transfer energy and heat from the solar surface into the corona, leading to phenomena such as solar flares and coronal mass ejections. The mission provides valuable data that help scientists unravel the dynamics of solar activity and its impact on space weather, which can affect satellite operations, communications, and power grids on Earth. IRIS’s detailed observations contribute to our broader knowledge of solar physics and improve predictive models of solar behavior.