This fiery golden wheel is an artery running through the thymus of a monkfish. The thymus is an organ in the lymphatic system that is a nursery for certain immune cells. The artery you can see here ...

These two muscle progenitor cells are busy showing off their actin filaments (green) during the process of cell - cell fusion. The cells will fuse into a single muscle cell with more than one nucleus, ...

Neutralizing HIV This colorful 3D molecular diagram represents an antibody (green) bound to a critical target on a specific protein present on the surface of the Human Immunodeficiency Virus (HIV), ...