Exosomes - in the flesh!

Today, I got an electron microscopy* image of my exosomes, so now I know they exist! Great day! The black bar at the bottom of this image is a scale bar for 500 nanometers (a nanometer is 1 millionth of a millimeter). My exosomes are the little circles, approximately 50 nanometers in diameter.

*Good explanation of electron microscopy if anyone is interested (I used TEM): http://www.explainthatstuff.com/electronmicroscopes.html