NASA scientists have detected a star and trailing exoplanet that may be sailing through the Milky Way with unprecedented speed. The star-and-planet duo, if confirmed, would set a record for the fastest-known exoplanet system – moving, by one estimate, at a blistering 1.2 million miles per hour, nearly double our solar system’s speed.

Scientists have discovered a potentially record-breaking fast planetary system, with a star and possible exoplanet moving at around 1.2 million miles per hour. This super-Neptune world orbits a low-mass star detected using gravitational microlensing.