New Horizons May Breach Solar System Boundary Between 2029 and 2040

At the edge of the Sun's vast protective embrace, a piano-sized spacecraft called New Horizons races toward a boundary humanity has never clearly witnessed — the place where our solar system's shield dissolves into the open cosmos. Researchers at Southwest Research Institute have built mathematical models to anticipate this crossing, estimating it will occur somewhere between 2029 and 2040, a window of uncertainty that itself speaks to the living, breathing nature of the heliosphere. This moment, when it comes, will not merely be a milestone for one spacecraft but a deepening of our understand