ESA in miniature
This is a version of the ESA logo like no other: seen through a microscope it measures just over 17 thousandths of a millimetre across, about half the diameter of the average human skin cell. The logo was carved out of a piece of nickel-based space-grade alloy Inconel using Xenon atoms shot from a plasma ion beam. While the logo measures 17.43 micrometres (thousandths of a millimetre