Overview: Euclid is a European Space Agency (ESA) M-class mission, with participation from NASA, to study the geometry and nature of the dark universe. It consists of a 1.2m telescope with two instruments operating at optical and near-infrared wavelengths (0.5-2 microns). The mission is optimized for undertaking two measurements sensitive to dark energy - weak gravitational lensing and galaxy clustering. It will also enable unprecedented advances in many other areas of astrophysics through its 15,000 square degree wide area survey. It has a 6 year nominal lifetime, and was launched July 1, 2023. NASA participation in Euclid includes delivery of the near-infrared detectors as well as participation in the design, data analysis and interpretation by US scientists.

The Euclid NASA Science Center at IPAC (ENSCI) is involved in providing algorithms and developing operations-quality code to be included in the near-infrared data reduction pipeline as part of the Euclid Consortium's Science Ground Segment. In addition, IPAC will operate the US Science Data Center (SDC-US; a node in the distributed data processing system). Using the knowledge gained through these activities, ENSCI will support the US research community by providing expert insight into the Euclid surveys, data processing, calibration, and products. ENSCI staff are available to assist investigations that intend to use data from the Euclid mission. ENSCI also provides a public repository for up-to-date information, documentation, detector characterization data, tools and online tutorials.