The Fermi Gamma-ray Space Telescope (FGST or Fermi) is a space-based observatory used to perform gamma-ray astronomy observations from low-Earth orbit.
The Legacy Survey of Space and Time (LSST) is a planned 10-year survey of the southern sky that will take place at the NSF-DOE Vera C. Rubin Observatory, located on the El Peñon peak of Cerro Pachón in northern Chile.