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“Each one of you can change the world, for you are made of star stuff, and you are connected to the universe.”

– Vera Rubin


My name is Deanna C. Hooper (they/them) and I am a theoretical physicist specialising in computational cosmology. I am currently a university researcher at the University of Helsinki, in the Helsinki Institute of Physics. I am a queer intersectional feminist and I am trying to make academia a nicer place. In addition to being a scientist and amateur astronomer, my hobbies include baking, gardening, solving puzzles, and watching sci-fi shows.


In a nutshell, my work focuses on developing cosmological codes and using them to study early universe phenomena such as dark matter and gravitational waves. I am a computational cosmologist, so I get computers to do physics for me.

As a computational cosmologist, most of my projects involve creating and using computational tools. I am currently a developer of three open-source cosmological codes. You can find more of my coding projects on GitHub.

Teaching is an extremely rewarding part of being a researcher. I have had the opportunity to tutor undergraduate and postgraduate level courses, and to supervise and mentor many students.

Science is amazing. I love being a scientist and I love sharing my research with everyone. I have been involved in several outreach activities and initiatives over the years.

I have lived, studied, and worked in several countries over the years. I have presented at over 40 different international conferences and research groups, and I have helped organise several international conferences.

I am the host and creator of Cup of Cosmology, a weekly interactive livestreaming show all about the universe. Check out some of the past episodes and highlights!