Multi-year formative and summative evaluations by Arizona State University found that participation in Citizen Science Month benefits participants, project scientists, and event hosts, including increased understanding of citizen science, greater confidence in engaging in projects, and a better understanding of how science works.

Citizen Science Month 2024 Summative Evaluation (ASU CREST Team)

Citizen Science Month 2022 Final Evaluation Report (ASU UOEEE Team)

A 2024 summative evaluation conducted by Arizona State University’s CREST Team found benefits for participants, project scientists, and facilitators—including increased understanding of citizen science and greater confidence to engage in projects.

April is Citizen Science Month!

A global celebration of public participation in scientific research.

Each April, Citizen Science Month celebrates the people, projects, and scientific outcomes made possible through public participation. In 2026, we are also working together toward a shared goal of 2.50 Million Acts of Science, marking America’s 250th Birthday through collective discovery, service, and impact.

Citizen Science Month is a global call to action each April, inviting people everywhere to help shape the future through science. While SciStarter connects people to citizen science projects and events year-round, this month brings together partners worldwide to reach new audiences and remind people that their participation truly matters. Small but important Acts of Science, taken together, lead to big impacts.

Citizen Science Month also presents an inspiring challenge for collective action. In 2026, participants around the world are working together to reach 2.50 Million Acts of Science, demonstrating how individual contributions add up to meaningful scientific impact. Participants can also earn the 2.50 Million Acts of Science badge in recognition of their contributions!

Citizen Science Month is built on the belief that everyone has something to contribute. Throughout April, during events and through ongoing projects, individuals of all ages and backgrounds are encouraged to take part in real scientific research. No prior experience is needed, only curiosity and a willingness to contribute.

Visit SciStarter.org/CitizenScienceMonth to learn how you can participate and be recognized for your contributions during Citizen Science Month.

WHAT IS AN ACT OF SCIENCE?

An Act of Science is any real way you help science. During Citizen Science Month, this can include sharing observations with a project, helping analyze data, attending a citizen science event, or completing the Foundations of Citizen Science training. Each of these actions counts as an Act of Science.

The goal of 2.50 Million Acts of Science shows how many small actions, taken together, can create a big scientific impact.

HOW TO PARTICIPATE

Visit CitizenScienceMonth.org/Participate to find ways to get started in minutes.

  • Find projects: Use SciStarter to discover projects by topic, location, and age level.
  • Join events: Participate in online workshops or local gatherings during April.
  • Contribute data: Make observations from your backyard, school, library, or community.

For a full list of projects, curated for the region you live in, visit our project finder.

2.50 Million Acts of Science Badge!

Learn how to earn a digital badge for your participation in 2.50 Million Acts of Science!

The History of Citizen Science Month

Citizen Science Month began in 2019 as Citizen Science Day and expanded into a month-long initiative in 2020. Over time, the initiative has grown in geographic reach, strengthened partner engagement, and added training and resources to support both participants and facilitators.

Since expanding to a full month, the program has evolved through continuous improvement and evaluation—including foundational training for citizen scientists and facilitators, global collaboration, and expanded community hubs (including libraries) that support participation worldwide. Learn more about what we achieved together during Citizen Science Month 2025 on the SciStarter Blog.

Citizen Science Month 2025 Highlights Reel

Founding Partners

SciStarter.org
SciStarter is a global citizen science hub that connects millions of people to thousands of opportunities to participate in real scientific research. We help people turn curiosity into Acts of Science through a powerful project and event finder, personalized dashboards, and tools that make participation easy across projects, websites, and apps. Led by the SciStarter Foundation, a 501(c)(3) nonprofit, and supported by a mission-aligned LLC for client services, SciStarter uses evidence-based approaches that are field-tested and scaled to support participants, scientists, and facilitators while coordinating major initiatives such as Citizen Science Month and Do NASA Science LIVE. Visit SciStarter.org to start your first Act of Science!

Arizona State University
The School for the Future of Innovation in Society (SFIS) is a transdisciplinary unit at the vanguard of ASU’s commitment to linking innovation to public value. SFIS pursues a vision of responsible innovation that anticipates challenges and opportunities, integrates diverse knowledge and perspectives, and engages broad audiences. By examining the ways we translate imagination into innovation — and how we blend technical and social concerns along the way — SFIS aims to build a future for everyone. ASU’s University Office of Evaluation and Educational Effectiveness (UOEEE) & College Research and Evaluation Services Team (CREST) has supplied research and evaluation support across the years.

Association for the Advancement of Participatory Sciences
The Association for Advancing Participatory Sciences (AAPS) is a member-driven organization that connects people from a wide range of experiences around one shared purpose: advancing knowledge through research and monitoring done by, for, and with members of the public. The association was a founding partner supporting the growth and coordination of the participatory sciences field.

Financial and Partnership Support
Thanks to support over the years from the National Institutes of Health, the National Library of Medicine, and the Gordon and Betty Moore Foundation, SciStarter and Arizona State University have scaled the program globally, supported a network of more than 1,000 public libraries, and increased the public’s awareness of and engagement in scientific research.

Global Planning Team for Citizen Science Month

Citizen Science Month is supported by a global planning team spanning multiple regions and organizations.

Darlene Cavalier

Founder and Executive Director, SciStarter

United States of America

Emma Giles

Director of Programs and Operations, SciStarter

United States of America

Mendel Wong

Co-chair & Co-founder, CitizenScience.Asia

Hong Kong

Ram Dayal Vaishnav

Head of Citizen Science, The Naturalist School
Education Director, CitizenScience.Asia

India

Anukriti Sharma

Special Projects Director, CitizenScience.Asia

India

Ashwin A

Citizen Science Coordinator, The Naturalist School

India

Pasindu Dilshan Abegunawardhana

Field Biologist & Citizen Science Practitioner

Sri Lanka

Jessie Oliver

SciStarter Australia Technical Adviser, The University of Adelaide

Australia

Michelle Neil

General Member & Social Media Moderator and Curator (Volunteer), Australian Citizen Science Association

Australia

Marumi Ishikawa, Ph.D.

Founder, CoLabField

Japan

Shinpei Sumimoto, Ph.D.

Co-Founder, CoLabField

Japan

Yasunobu Morita, Ph.D.

Director, Citizen Science Research Center, Faculty of Commerce, Fukuoka University

Japan

Jennifer Shirk

Executive Director, Association for Advancing Participatory Sciences

United States of America

Frequently Asked Questions

What is Citizen Science Month?

Citizen science (also called participatory research or community science) takes place year-round. Each April, Citizen Science Month spotlights discoveries, volunteers, practitioners, projects, and outcomes—and makes it easier for people to join together in shared activities.

What is “Citizen Science”?

Scientists can’t be everywhere and they don’t know everything. That’s why they need you. By following protocols, you can jump in and help answer questions they cannot answer without you. Everyone is invited to participate.

Where can I learn more about hosting an event in April?

Visit the Citizen Science Month resources page to explore toolkits, planning guides, and outreach materials. Use our Media Toolkit to spread the word!

What’s the relationship between Citizen Science Month, Acts of Science, and Acts of Science: Connected?

Citizen Science Month is the umbrella term for all events and programs taking place in April.

Acts of Science: this is a call to action and one way to digitally measure impact. How many data observations were shared? How many online data files were annotated or analyzed? SciStarter records these Acts through Affiliate projects (these projects uses digital tools that report data to SciStarter) and self reporting through online forms hosted by SciStarter. In April 2026, the goal is 2.50 Million Acts of Science in celebration of America’s 250th birthday.

Acts of Science: Connected: This refers to a series of weekly, virtual events hosted by SciStarter that feature a single project. Anyone can tune in from wherever they are, as we all do the same project together. We’ll introduce you to the project scientist who will talk us through the steps and answer your questions.
Many libraries, schools, museums, etc, will host in-person gatherings and livestream these virtual events. Attendees will bring their computers. Hosts will stream the virtual event, and provide Wi-Fi, space, swag, and fun and people around the world engage in the same project, at the same time.

Find a list of weekly events and featured projects here.

I still have questions! Who can I reach out to?

We’d love to hear from you! Email info@SciStarter.org. Also consider reaching out to a nearby SciStarter Ambassador.

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