These two researchers have developed differing models for the size distribution in the population of comets. Everhart believes that comets demonstrate a size-frequency distribution that is roughly a power law relation. The smaller the object, the more of them there are. Hughes believes that the observed lack of small objects is not an observtional bias, but rather a result of the true size distribution of comets.
Current evidence can go either way.
The observers Planned in 1993, and finally realized in mid-1996, CAS is conducted by Gilbert A. Esquerdo and John C. Barentine. Observing partners since 1994, details on our other research projects, as well as links to information about the observers themselves can be found here. At this time, arrangements for use of an instrument are being made. Once completed, observations can begin.