Do you have a particular memory of each series? How do you remember Next Generation and the others in terms of what your department has done?

We�ve made nebulas in many different ways. On Next Generation, some of the nebulas were paintings, and I would airbrush them on big, black pieces of foam core, and then do camera moves, and then have separate layers of stars. Sometimes I�d airbrush different layers so you�d have a feeling of multi-planing. Then we�ve, of course, used the � the pom-pom a couple of times, out of focus, as nebulas. And now we generally will take computer software and create nebulas that way. And NASA and JPL sometimes provide us with deep space photographs from the Hubble Telescope, and we will paint out the stars so we can put our own stars in and shift them around a little bit and make nebulas that way, as well. And frequently we�ve taken things like a light bulb, photographed through acetate which has been rubbed with steel wool, and that might be the more glowing core of a nebula, as a separate pass on a motion control rig.