After decades rocketing away from the Sun and planets,
solar wind instruments on the Voyager space probes
began detecting an astounding gradual slowing (deceleration) over four years
graphic source
That is:  A violation of  Newton’s First Law:
An object in motion continues at the same, constant speed
unless acted on by another force:
Outer Space where Voyager is flying is essentially an empty vacuum,
lacking any atmosphere or known force to slow solar wind down.
while spinning the probe around four different times.
What about STELLAR wind from stars that are supposed to be like what the Sun is???
Also crucial is solar wind slowed down gradually and steadily over three years,
as if an unchanging, relatively low level of braking was constantly being applied to EACH tiny particle!
There is certainly nothing like a brake in the virtually total vacuum Voyager is racing through.