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Science without a Degree: What is Citizen Science and How to Get Involved

Posted on April 11, 2020 by Jennifer Sieben

Louis Pasteur once said, “Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.” The act of doing science should not, and cannot, be confined to people in lab coats with multiple degrees squinting at computer screens and scribbling on whiteboards. Exploring the natural world around us should be something everyone can take part in, and that’s what citizen science is.

repeating illustrations of a laptop showing a bar graph, a microscope, and a magnifying glass.
Image source: Jackie Aim, University of Edinburgh 2017 CC BY 4.0

Citizen science is the collaboration between professional scientists and amateur scientists. This melding of expertise helps to direct non-professionals to the big questions of a field and helps the professionals gain the human power needed to complete large projects. Not to mention some community groups are even coming together to publish respected papers in the field. And although the internet has helped this collaboration immensely, amateurs have been doing important science for centuries. Big names like Sir Isaac Newton, Ada Lovelace, and Stephen Wolfram have all funded their own work and would be considered non-professional scientists. 

While many fields have citizen science projects, I will focus on astronomy. Amateur astronomers started my own field of astronomy and still thrive within it today, from backyard astronomers with binoculars to those who own private observatories. Since 1911, the American Association of Variable Star Observers (AAVSO) has coordinated the efforts of such astronomers to collect data on bright stars and this data can then be used to compliment our large telescope data. 

More recently, Galaxy Zoo started putting collections of galaxy images online to ask for help in categorizing them. The first collection had 900,000 galaxies. For one person, that’s more than 5 years of work, but for a community of citizen scientists, it may only take a few weeks. As co-founder of the project Chris Lintott said, “In many parts of science, we’re not constrained by what data we can get, we’re constrained by what we can do with the data we have. Citizen science is a very powerful way of solving that problem.” Over 60 papers have been published based on Galaxy Zoo work and one new type of galaxy was even discovered: Green pea galaxies – now the subject of an IU astronomer’s thesis.

An image of a wispy nebula in our galaxy, mainly green against a black sky. The middle panel marks all user’s drawings of where bubbles are, and the right panel marks the final confirmed bubbles.
Zooniverse volunteers (over 35,000 of them!) working on the Milky Way Project poured through data of our own galaxy to discover more than 5,000 “bubbles” that indicated brand new star formation regions. At least five volunteers must flag a candidate bubble before it is included in the final catalog (right). The brightness of each bubble in the catalog is determined by its “hit rate,” or the fraction of users who traced it out. The faintest ones were identified by 10 percent of the users, while solid white indicates a hit rate of 50 percent or better. Image credit: NASA/JPL-Caltech/Oxford University

Spurred on by its success, the project has been renamed Zooniverse and it now contains projects across many scientific disciplines. You can help transcribe 10th-13th century documents on the lives of Jewish people in Egypt, search for retinal damage caused by diabetes, or identify wildlife in Chicago. Personally, I am helping to find and transcribe the notes of important women in astronomy. This is my 12th Zooniverse project and as I grow as an astronomer I find myself understanding more of the context to why these projects are important. And I still enjoy helping with projects outside of my field to widen my horizon and keep learning new things. When I open the history projects, I am just as uneducated as my 15 year old self was when I started classifying galaxies.

Science needs no degree, only a healthy amount of curiosity. Citizen science is there to help you explore, learn, and make discoveries. Together, we can embark on the adventure we call Science.

Edited by: Evan Arnet and Lana Ruck

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Filed under: General Science, Scientific Methods and TechniquesTagged astronomy, astrophysics, Collaboration, methods, outreach, STEM

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