Those are the most complex molecules so far found in space.

An analysis of the gas residue had revealed some extremely unusual and complex molecules.

Larger entities looked more like multidimensional models of complex organic molecules.

This means that some other solar systems might have the potential to form more complex molecules (or do so faster) than ours.

Here we can see the synthesis of complex organic molecules happening before our eyes.

Vitamins are complex molecules, usually with lots of atoms involved.

We know, too, that meteorites often do contain complex organic molecules.

In its new form, it had the sleek, functional look of a complex molecule.

These natural biomolecules are usually large and complex molecules.

This makes the process particularly suited to the production of fibers using large and complex molecules.