The Nanolive 3D Cell Explorer is a novel new instrument that uses holographic tomography to generate a three-dimensional image of the sample with contrast determined by refractive index. It works primarily with adherent cell cultures where the instrument makes many subcellular structures immediately visible label-free. A 30 micrometer stack of images can be collected every 2 seconds. It can keep cells alive in a healthy state for days at a time allowing incredibly long timelapses.