Christofer Nelson
President and CEO
Pronouns: he/him/his
Christofer steers ASTC in its strategic vision, championing public engagement with science, setting course together for new frontiers, and supporting and connecting members.

Rachel Diamond, PhD
Chief of Staff
Pronouns: she/her/hers
Rachel manages ASTC’s operations, facilitates teamwide collaboration, and coordinates board relations, while leading core components of ASTC’s community science initiative.

Na’ilah Metwally
Coordinator of Operations
Pronouns: she/her/hers
Na’ilah serves as a first point of contact for vendors and ensures smooth day-to-day operations across the ASTC team. 


Melissa Ballard
Director of Programs
Pronouns: she/her/hers


Amanda Fisher
Manager of Gender Equity Initiatives
Pronouns: she/her/hers
Amanda leads ASTC and the National Girls Collaborative Project in their joint equity in gender representation efforts as a part of the IF/THEN® Coalition and works to spread and scale inclusive approaches that advance equity and access across our networks.

Ivel Gontan
Ivel Gontan
Community Science Fellow


Adam Fagen, PhD
Director of Communications and Advocacy
Pronouns: he/him/his
Adam leads ASTC’s communications, policy, and advocacy efforts, from making the case for the work of our members and advocating for the importance of public engagement in science to engaging ASTC members across the association’s many communications platforms.

Jamie Durana
Manager of Communications and Special Projects
Pronouns: she/her/hers
Jamie advances ASTC’s communications objectives, provides editorial support on a variety of content, and leads production of the Informer, ASTC’s biweekly member email newsletter.

Wendy Hancock

Senior Manager of Programs and Events
Pronouns: she/her/hers
Wendy leads the programming for ASTC’s online and in-person events, coordinates the Annual Conference Program Planning Committee, and manages multiple partnerships that support ASTC members’ program design and delivery for everything from space science activities to teacher professional development.

Todd Happer
Senior Manager of Member Engagement
Pronouns: he/him/his
Todd leads ASTC’s member engagement efforts to facilitate learning and collaboration and connects members with the many benefits and resources they have available through ASTC.

Nina Humes
Manager of the ASTC Annual
Nina manages all aspects of the
ASTC Annual Conference, including
working with the host institution, presenters, exhibitors, sponsors,
and other partners.

Gaby Wilson
Manager of Member Data, Services, and Engagement
Pronouns: they/them/theirs
Gaby manages ASTC’s membership application, renewal, and support processes, leads registration for the ASTC Annual Conference, and supports a wide variety of member services and programs.


Jamie Bell
CAISE Project Director
Pronouns: he/him/his
Jamie provides leadership for CAISE, the resource center that convenes, connects, characterizes, and communicates the portfolio and work of the U.S. National Science Foundation’s Advancing Informal STEM Learning (AISL) program.

Sasha Palmquist, PhD

Senior Manager of Community
Pronouns: she/her/hers
Sasha manages CAISE’s work to develop resources and to engage the U.S. National Science Foundation’s Advancing Informal STEM Learning (AISL) principal investigators and project teams, as well as the broader informal science learning community.

Shannon Sullivan
CAISE Project Manager
Pronouns: she/her/hers
Shannon leads project management for CAISE, including organizing principal investigator meetings for the U.S. National Science Foundation’s Advancing Informal STEM Learning (AISL) program and curating CAISE’s digital repository at InformalScience.org.

Aya Rothwell
Aya Rothwell
Communications Coordinator


Julian Boaitey

Director of Finance and Administration
Julian leads ASTC’s finance and administration activities and ensures the organization maintains strong fiscal and administrative management.

Joaquin Peña

Staff Accountant
Pronouns: he/him/his
Joaquin executes ASTC’s accounting activities, works closely with our members, vendors, and funders, and provides a wide variety of other finance support across the ASTC team.


Erica Kimmerling, PhD

Senior Advisor for Science Engagement Policy and Partnerships
Pronouns: she/her/hers
Erica connects and supports leaders throughout the science engagement ecosystem interested in taking collaborative action to nurture the relationship among all people and science, and she works to advance policies that support greater public engagement in science.


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