The gif looks like a spaced out college dorm screen saver. Its actually the a valuable tool in the journey fight cancer. From Scientific American:

Despite the emotional toll of cancer and tremendous economic undertaking of cancer research, it is still rare to see the disease in its most basic form. This short clip shows just that. The GIF was created with a compilation of still images, each of which captured a different layer of a cancer cell.

Even something as tiny as a cell is thick enough for specialized cameras to examine in detail. In a process called Z stacking, scientists photograph their subject, whether it be a cell or bit of pollen, and choose a series of different focal points for each picture. When viewed sequentially, the images illustrate the contents and contours of the subject.

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