We haven't built a spacecraft that can reach nearby stars within a human lifetime.
open
Global / Unspecified, Global
Even our fastest probes would take tens of thousands of years to reach the nearest star system. Without a breakthrough in propulsion, interstellar travel remains purely theoretical.
Citation ID: WS00010
Title: We haven't built a spacecraft that can reach nearby stars within a human lifetime.
URL: https://worldsolve.org/index.php?api=problem&id=10