how fast are the voyager spacecraft travelling
On February 17, 1998, Voyager 1 reached a distance of 69 AU from the Sun and overtook Pioneer 10 as the most distant spacecraft from Earth. Travelling at about 17 kilometers per second (11 mi/s) it has the fastest heliocentric recession speed of any spacecraft.ew Horizons is traveling at about 15 km/s, 2 km/s slower than Voyager 1, and is still slowing down. When New Horizons reaches the same distance from the Sun as Voyager 1 is now, its speed will be about 13 km/s (8 mi/s).