Scientists Complete Construction of the Biggest Digital Camera Ever
To do this, the team needed a Rolls Royce of a digital camera. Mind you, the camera actually cost many million times that of an actual Royce Royce, and at 6,200 pounds (2,812 kilograms), it weighs a lot more than a fancy car. Each of the 21 rafts that makes up the camera’s focal plane is the price of a Maserati, and are worth every penny if they collect the sort of data scientists expect them to. “I’m personally most excited to study the expansion of the Universe using gravitational lenses to better understand Dark Energy,” said Aaron Roodman, a physicist at SLAC and lead on the camera program, in an email to Gizmodo. “That means two things: 1) measuring the brightness in all six of our filters of literally billions of galaxies and very carefully measuring their shape, which has been subtly altered by the bending of light by matter, and 2) discovering and studying very special objects where a distant quasar is almost perfectly lined up with a more nearby galaxy.”
Speaking through a SLAC release, Rodman said the camera’s images could “resolve a golf ball from around 15 miles away, while covering a swath of the sky seven times wider than the full moon.” The first images from the Rubin Observatory are slated to be publicly released in March 2025, which feels like a long way away. But several important agenda items still need to happen. For one, the SLAC team has to ship the LSST camera safely to Chile from its current lodgings in northern California. (Don’t worry — they’ve made a test run of the journey.) Then, the observatory’s mirrors need to be readied for testing and the observatory’s dome has to be completed, among some other tasks. But whenever all that is complete, the legacy survey will launch into a decade’s worth of scientific discovery. Rubin Observatory estimates suggest that LSST could “increase the number of known objects by a factor of 10,” according to a SLAC release.
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