Google Earth allows us to obtain a new vision of the planet we live on, with an ability to zoom in from space to ground level detail at any point on Earth. As it is only recently that we have been able to look toward the Earth from space, we review instead the history of imaging of the Jupiter moon Ganymede, another globe, first seen by Galileo. Observations of Ganymede are mined for lessons on the importance and impact of improving (...) imaging technology. Similarly, new insights may await us when we have proper tools for quantitatively looking at another unexplored globe, the embryo, in a sense for the first time. (shrink)

Embryos start out as tiny globes, on which many important events occur, including cell divisions, shape changes and changes of neighbors, waves of contraction and expansion, motion of cell sheets, extension of filopodia, shearing of cell connections, and differentiation and morphogenesis of tissues such as skin and brain. I propose to build a robotic microscope that would enable a new way to look at embryos: Google Embryo. This is akin to sending a space probe to Jupiter and its moons, sending (...) back spectacular new visions of their complexity, activity, and beauty. (shrink)