Fastest spacecraft speed
Parker Solar Probe
586800 kilometre(s) per hour
Not Applicable ()

The fastest speed by a spacecraft is 163 km/s (586,800 km/h; 364,660 mph), which was achieved by the Parker Solar Probe at 21:25:24 UTC on 20 November 2021. The probe reached this speed at perihelion (the closest point in its eliptical orbit around the Sun) following a gravity assist from a Venus fly-by on 16 October, which tightened its orbit. It passed within 8,541,744 km (5,307,594 mi) of the Sun's surface. This record will stand until the Parker Solar Probe's 17th perihelion on 27 September 2023.