Will a particle exhibit Brownian motion in the vacuum and weightless environment of space?

Will the atoms that compose the particle have an effect or is Brownian motion solely the result of the media in which it is suspended.Will a particle exhibit Brownian motion in the vacuum and weightless environment of space?Outer space is not a perfect vacuum; the particle will occasionally be bumped by a gas molecule, which will alter its momentum. So yes; there is Brownian motion in space, but the time between motion changes is much longer, and the particle moves farther in a straight line each time.Will a particle exhibit Brownian motion in the vacuum and weightless environment of space?yes, the brownian motion is just the atoms bumbing into each other, gravity only shows this more. there would be no brownian motion in absolute zero, because of temperature, but this state is not possible because it will violate the heisenberg uncertainty principle