This document summarizes key findings from a study of the radio jet in galaxy 3C84 using very long baseline interferometry (VLBI) with the RadioAstron space telescope. The observations resolve the edge-brightened jet structure only 30 microarcseconds from the core, corresponding to ~350 gravitational radii. This is 10 times closer to the central engine than previous ground-based observations. The measurements show the jet has an initially wide opening angle of 130 degrees that rapidly collimates into an almost cylindrical profile out to ~8,000 gravitational radii. The wide jet observed so close to the core poses challenges for models where the jet originates from the black hole ergosphere.