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Rachel is a Senior Communications Advisor for Inyarrimanha Ilgari Bundara, the CSIRO Murchison Radio-astronomy Observatory. Supporting the communications objectives of the observatory and SKA Team Australia (lead by Department of Industry, Science and Research) this follows a long history of science communications in Australia and overseas.

She holds a Graduate Diploma in Science Communication from ANU and Questacon, and also a Bachelor of Liberal Studies (Physics and Art History & Theory) from University of Sydney, Outside of CSIRO, Rachel is known for her STEM comedy and podcasting, under the name Rayner the Explainer.

Bry the Fly Guy, aka Dr Bryan Lessard, is an award-winning entomologist, science communicator and author of the kid's book EYES ON FLIES.

Bry discovered the curious world of flies as an undergraduate, learning about maggots and their uses in medicine and solving crime. He has discovered more than 150 species new to science and officially named 50 species from Australia and New Zealand, most famously Plinthina bey­on­ceae, the horse fly with a golden abdo­men named after Beyoncé. Although the fabulous RuPaul fly Opaluma rupaul might have something to say about this! These beautiful species quickly became bootylicious ambassadors for biodiversity after sparking a global conversation about the importance of naming species.

Bryan previously worked as a Postdoctoral Fellow at CSIRO’s Australian National Insect Collection, researching the evolution and classification of flies and mosquitoes, and exploring how insects might become sustainable super­food of the 21st century.

Bry loves presenting and sharing his passion for insects and biodiversity with the world including his biodiversity countdown on ABC Evenings Radio with Chris Bath, and appearances on ABC News, BBC World, Catalyst, Gardening Australia, Totally Wild, Scope TV, Sunrise, 9 News, The Project and more.

Dr Rebecca Allen is the Co-Director of Swinburne's Space Technology & Industry Institute, applying her scientific expertise to support Australia's growing space industry. Her PhD in astrophysics focused on evolution and growth of galaxies over time, going all the way back to when the Universe was barely a billion years old. Now she uses this knowledge to address challenges we face as our activities and dependency on space grow and how space can be used to help Earth; a keen interest in how Earth Observation can build climate change resilient communities and support critical industry. Dr Allen empowers learners via hands-on projects in areas like microgravity experimentation - providing important skills and experience by sending payloads to space. When not studying space or sending things there, she’s enthusiastically communicating wonders of the Universe to others and creating inspiring learning experiences.