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Arrival and inspection of the L3 lens of the LSST Camera

Jeff Tice, background, holds the particle counter while Travis Lange inspects the surface of the r-band optical filter for dust particles.

Mechanical engineer Travis Lange carefully watches the installation of the 14th raft tower modules.

Vera C. Rubin Observatory LSST Camera Focal Plane Build

Dwarf Galaxy 3

This photo shows a small fuel cell inside of a sample chamber at SLAC's SSRL. This experimental station allows scientists to study fuel cells under more realistic conditions.

A small fuel cell inside of a sample chamber at SLAC's Stanford Synchrotron Radiation Lightsource (SSRL)

This photo shows the 3,200-megapixel focal plane of Rubin Observatory’s LSST Camera, under construction at SLAC.

A muon, center, spins like a top within the atomic lattice of a thin film of superconducting nickelate.

A brightly colored top is seen spinning between two layers of gray, purple and red spheres representing atoms in a nickel oxide superconductor. The top represents a fundamental particle called a muon.

The largest digital camera ever built for ground-based astronomy, the 3.2-gigapixel Legacy Survey of Space and Time Camera is the size of a small car and weighs more than 3 tons.