{ "149987-21907767": { "datetime_modified":"20260817T084252", "datetime_start":"20260909T150000", "datetime_end":"20260909T160000", "has_end_time":1, "date_start":"2026-09-09", "date_end":"2026-09-09", "time_start":"15:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"Department Colloquium | Robots, Galaxies, and Dark Energy: The DESI Story (So Far)", "occurrence_title":"", "combined_title":"Department Colloquium | Robots, Galaxies, and Dark Energy: The DESI Story (So Far): Michael Schubnell (U-M Physics)", "event_subtitle":"Michael Schubnell (U-M Physics)", "event_type":"Workshop \/ Seminar", "event_type_id":"21", "description":"The standard cosmological model, Lambda-CDM, provides a remarkably successful description of the universe, yet the physical nature of dark energy remains unknown. Is it a cosmological constant, or does it evolve with cosmic time? The Dark Energy Spectroscopic Instrument (DESI) was built to address this question by obtaining spectra of millions of galaxies and quasars and constructing an unprecedented three-dimensional map of the universe. In this colloquium, I will tell the story of how DESI became one of the world\u2019s most productive instruments for cosmology. At its heart are 5,000 robotic fiber positioners, built at the University of Michigan, that allow DESI to observe thousands of objects simultaneously. I will tell the story of how an ambitious idea became a working instrument - from construction at Michigan through integration and installation to survey operations at Kitt Peak. Along the way, DESI faced a global pandemic, a wildfire that threatened the observatory, and other unexpected challenges of operating a complex instrument on a mountaintop. Despite these obstacles, it reached its survey goals ahead of schedule and within budget. I will discuss what made that success possible, place DESI\u2019s emerging cosmological results in context, and conclude with the scientific opportunities ahead.", "occurrence_notes":null, "guid":"149987-21907767@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/149987", "building_id":"1000167", "building_name":"West Hall", "campus_maps_id":"163", "room":"340", "location_name":"West Hall", "has_livestream":0, "cost":"", "tags":["Physics","Science"], "website":"", "sponsors":[ { "group_name":"Department Colloquia", "group_id":"3804", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21907767 } , "148343-21903967": { "datetime_modified":"20260519T152754", "datetime_start":"20261014T160000", "datetime_end":"20261014T170000", "has_end_time":1, "date_start":"2026-10-14", "date_end":"2026-10-14", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"2026 Ta-You Wu Lecture in Physics", "occurrence_title":"", "combined_title":"2026 Ta-You Wu Lecture in Physics: John M. Martinis, Distinguished Physics Professor (UC Santa Barbara)", "event_subtitle":"John M. Martinis, Distinguished Physics Professor (UC Santa Barbara)", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"We\u2019re finalizing the details for this event! Please check back for updates.", "occurrence_notes":null, "guid":"148343-21903967@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/148343", "building_id":"1000172", "building_name":"Rackham Graduate School (Horace H.)", "campus_maps_id":"71", "room":"4th Floor Amphitheatre", "location_name":"Rackham Graduate School (Horace H.)", "has_livestream":0, "cost":"", "tags":["Graduate Students","Physics","Smoke-free","Undergrad Physics Events"], "website":"https:\/\/lsa.umich.edu\/physics\/news-events\/special-lectures\/ta-you-wu-lecture.html", "sponsors":[ { "group_name":"Department Colloquia", "group_id":"3804", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21903967 } , "148234-21903426": { "datetime_modified":"20260512T112510", "datetime_start":"20270331T160000", "datetime_end":"20270331T170000", "has_end_time":1, "date_start":"2027-03-31", "date_end":"2027-03-31", "time_start":"16:00:00", "time_end":"17:00:00", "time_zone":"America\/Detroit", "event_title":"2027 Helmut W. Baer Lecture", "occurrence_title":"", "combined_title":"2027 Helmut W. Baer Lecture: Abhay Deshpande, Associate Lab Director for Nuclear and Particle Physics & EIC Science Director (Brookhaven National Laboratory and Stony Brook University)", "event_subtitle":"Abhay Deshpande, Associate Lab Director for Nuclear and Particle Physics & EIC Science Director (Brookhaven National Laboratory and Stony Brook University)", "event_type":"Presentation", "event_type_id":"16", "description":"Prof. Abhay Deshpande works in experimental nuclear and high-energy physics. His current research includes various exploratory and precision studies in QCD using polarized proton-proton, proton-nucleus, and nucleus-nucleus beams of the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory on Long Island, and high-intensity polarized electron beams of the recently upgraded Continuous Electron Beam Accelerator Facility (CEBAF) at Thomas Jefferson National Laboratory, in Newport News, Virginia. He has been deeply involved in the development of the science and promotion of the future Electron Ion Collider.", "occurrence_notes":null, "guid":"148234-21903426@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/148234", "building_id":"1000167", "building_name":"West Hall", "campus_maps_id":"163", "room":"340", "location_name":"West Hall", "has_livestream":0, "cost":"", "tags":["Engineering","Faculty","Free","Graduate And Professional Students","Natural Sciences","Nuclear","Smoke-free","Undergrad Physics Events","Undergraduate Students"], "website":"https:\/\/lsa.umich.edu\/physics\/news-events\/special-lectures\/the-helmut-w--baer-lecture.html", "sponsors":[ { "group_name":"Department Colloquia", "group_id":"3804", "website":"" } ], "image_url":"", "styled_images":{ "event_thumb":"", "event_large":"", "event_large_2x":"", "event_large_lightbox":"", "group_thumb":"", "group_thumb_square":"", "group_large":"", "group_large_lightbox":"", "event_large_crop":"", "event_list":"", "event_list_2x":"", "event_grid":"", "event_grid_2x":"", "event_feature_large":"", "event_feature_thumb":"" }, "occurrence_count":1, "first_occurrence":21903426 } }