In 2021, the pandemic continued in new avatars, throwing different challenges at us. Undaunted, researchers dived into the far realms of science, and we at Research Matters strived to bring those fascinating finds to the fore.

As we wrap up another year, we are glad that you were glued to some of the stories we have published. Articles that showcased advances in engineering, technology, and material sciences ruled your choice this year. In ecology and conservation, a different perspective caught your attention. As always, space and astronomy stories garnered interest. Here, we curate a list of the ten most-viewed articles.