Scientists
Seth Shostak
Astronomy
Mark Showalter
Planetary Astronomy
Andrew Siemion
SETI
Emilie Simpson
Planetary Sciences
Richard Simpson
Planetary Sciences
Gurmehar Singh
Computer Science
Jeffrey Smith
Physics
Pablo Sobron
Planetary Sciences
Bill Sparks
Astronomy
Simon Steel
Education and Public Outreach
David Summers
Chemistry
Jill Tarter
SETI