DESI is a unique instrument – comprising 5000 robotically positioned fibers that feed an array of ten high-efficiency spectrographs – to measure the effect of dark energy on the expansion of the Universe. By measuring the spectra of many galaxies at once, DESI’s five-year survey is mapping the large-scale structure of the universe over one-third of the sky and 11 billion years of cosmic history. DESI is an international science collaboration managed by the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) with primary funding for construction and operations from DOE’s Office of Science.
The 22-minute planetarium film provides a rare glimpse into modern cosmology by introducing viewers to DESI researchers and featuring original footage of the telescope and interviews with DESI scientists from all over the world. The film's exciting conclusion is a fly-through of DESI's first year of data. The positions of over 14 million extra-galactic objects are visualized in 3D for the first time, revealing the largest structures in the universe as never seen before.
DESI Director, Michael Levi, a senior scientist in Berkeley Lab’s Physics Division, is enthusiastic about this new presentation: “I am very excited to be able to visualize the first year of data just taken by the instrument, now available to be seen in the film by scientists and the public alike. The quality of the three dimensional data is breathtaking in its beauty and ability to reveal the hidden large-scale structures of the Universe. The fly-through in the film lets the viewer peer back in time to billions of years ago.”
The film’s director, Claire Lamman, who joined DESI as a graduate student from Harvard University, has been working on the film since May 2020. “When you watch videos about observations in astronomy, ... you’re often seeing a very neat, distilled version of the actual process. Real data can be messy and there are so many small things to take into account – from the subtle ways that galaxies are oriented, to humidity and wind at the telescope. That’s why we need many different people, with many different specialties, to take on a project like this one.”
According to Levi, “The DESI collaboration funded this production in part to give our early career scientists a means to express and share their excitement in doing world-class research. Their youthful exuberance comes through and I am thrilled for everyone to see it.”
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