In the category "Science" we currently track items of 80 persons. The most popular ones, by number of traded items, are:

Jane GoodallThomas EdisonEdward Teller
Bill GatesJonas SalkLinus Pauling
James WatsonAlbert EinsteinSteve Jobs
Denton CooleyMichael DeBakeyVint Cerf
Martin CooperSimon LakeJack Kilby
Steve WozniakClyde TombaughCarl Sagan
Tim Berners-LeeChristiaan Barnard 

You can find all people that we're currently tracking items for in the alphabetical index:
A    B    C    D    E    F    G    H    J    K    L    N    P    S    T    V    W