We’ve had a number of great guests join us on the program. If there’s someone you think would be a good guest to have on, or someone you’d like us to bring back, let us know via the form on the contact page!

Jo Alabaster

Jo Alabaster is a science communicator currently studying a BSc (Applied Sciences) via Open Universities Australia. She blogs at and can often be heard as a reporter on the Skeptic Zone podcast.

Rob Brooks

Professor Rob Books is an evolutionary biologist who thinks about sex for a living. He is the director of the Evolution & Ecology Research Centre at UNSW Australia and the author of Sex, Genes & Rock ‘n’ Roll: How Evolution has Shaped the Modern World and a frequent writer at The Conversation.

Alan Duffy

Dr. Alan Duffy is a theoretical astrophysicist and cosmologist at Swinburne University, investigating how galaxies form, the nature of dark matter and the large scale properties of the Universe. He’s a co-host of Pint in the Sky, a vodcast about astrophysics in a pub. For more of his talks, interviews and writings see his webpage.

Ketan Joshi

Ketan Joshi is a Research and Communications Officer at Infigen Energy, a renewable energy company. He writes about renewable energy and climate issues here, and tweets here.

Katherine J Mack

Katie Mack is a theoretical astrophysicist at the University of Melbourne. She is a co-host of Pint in the Sky, a vodcast about astrophysics and beer. She also participates in Melbourne Uni’s Telescopes in Schools program, writes on her blog and tweets at @AstroKatie.

Fred Watson

Fred Watson is Astronomer in Charge of the Australian Astronomical Observatory at Coonabarabran. He is also an adjunct professor at the Queensland University of Technology and the University of Southern Queensland. He is also a popular science writer and communicator. More information, including his books and tour information, can be found at his website.

David Hawkes

David Hawkes is a postdoctoral researcher at the Florey Institute of Neurosciences and Mental Health. He is a virologist who designs and builds new and innovative viral tools to help investigate how the brain works. He has a strong interest in promoting crowd-funding for science.

Phil Kent

Phil Kent is the owner of Aquariums To Go,  which specialises in the servicing, sale, custom design and installation of aquariums in Queensland, Australia. He is also an active member of the skeptic community, and is an organiser for Brisbane Skeptics in the Pub.

Mel Thomson

Mel Thomson is an Infectious Disease Researcher at Deakin University. In 2013 she teamed up with Dr Michelle Harvey, also at Deakin, to investigate Mycobacterium ulcerans (aka the Bairnsdale Ulcer). In particular, they are running a small trial to see if medical maggots can be used as an alternative to plastic surgery for treatment of this flesh eating disease.

Pamela Gay

Pamela L. Gay is an astronomer, educator, podcaster, and writer. She is best known as the co-host of AstronomyCast and for her work with citizen science projects. She blogs at StarStryder, tweets at @starstryder and is on Google+.

Dyani Lewis

Dyani Lewis is a researcher currently working at the Melbourne School of Population Health in the field of sexual and reproductive health. With a PhD in plant genetics, and a Masters in Journalism/Professional Writing, she is the Science and Technology Producer on Melbourne Uni’s Up Close podcast. She writes for her blog, The Conversation and many other sites.

Matthew Witkowski

Matthew Witkowski is a childhood leukemia researcher at the Walter and Eliza Hall Institute. In 2013 he came second in the Cleo Bachelor of the Year competition.
He tweets at @MWitt66.

Sharon Harnett

Sharon Harnett is an amateur astronomer (with a MSc in Astronomy) who writes for Australian Science Magazine and Dave Reneke’s World of Astronomy. Her blog, AstroChix, focuses on the contribution women have made - and continue to make – in astronomy and space science. She’s also a budding astrophotographer, you can view her photos here.

Dr. Kevin Orrman-Rossiter

Dr. Kevin Orrman-Rossiter is the Senior Research Services Officer, Faculty of Science at University of Melbourne. For more than twenty years he has worked as a research scientist in academia and industry. Kevin writes about science on his blog, Lucid Thoughts, as well as The Conversation and Australian Science.

Cobi Smith

Cobi Smith has worked for the Australian Broadcasting Corporation and Royal Institute Australia. She’s currently completing her PhD in science communication, while consulting in public engagement with science and experimenting with improvisation and comedy.

Simon O'Toole

Simon O’Toole is an astronomer and science communicator. He looks for planets orbiting other stars at the Australian Astronomical Observatory, blogs at I Wouldn’t Normally Call on public outreach, and tweets about all sorts of stuff.

Greg Wah

Greg is a co-host of Smart Enough to Know Better – a podcast about science, comedy and ignorance. He is a science communicator for the CSIRO and is currently doing his Masters of Astronomy. Greg can be heard regularly on ABC Radio 612 in Brisbane.

Dan Beeston

Dan is a science communicator and author. He is one half of the popular science podcast Smart Enough to Know Better and can be heard regularly on ABC Radio 612 in Brisbane. He wrote the award winning webcomic Lilley Street and the critically acclaimed Sleep Dep.

Alan Kerlin

Alan Kerlin is an amateur astronomer and blogger. His blog is called The Beach House – a tribute to Douglas Adams – and features lots of science-related news, interviews and writings. Find him on Google+, Twitter and Facebook.

Dr. Helen Maynard-Casely

Dr. Helen Maynard-Casely is a postdoctoral research fellow at the Powder Diffraction beamline, Australian Synchrotron. Her undergraduate studies were in Planetary Science, which sparked her interest in planetary interiors and high-pressure physics. She writes “The Shores of Titan” column on The Conversation.

Vanessa Vaughan

Vanessa Vaughan is a PhD student with the Molecular Nutrition Unit at Deakin University’s School of Medicine. Her research focuses on the use of nutritional therapies for preventing and treating cancer cachexia, a muscle wasting condition affecting many cancer patients. For more information see her blog, here.

Mags Lum

Mags Lum is a chemist and a metallurgist and a Fly In Fly Out worker in the mining industry. She blogs here and tweets here Mags is also a co-founder of Letters to Sir David Attenborough, a blog full of tributes to the inspirational communicator.

Upulie Divisekera

Upulie Divisekera is a molecular biologist and co-host of the Facts for the Post-Factual podcast . She’s a ‘dinosaur evangelist’ and enthusiastic science tweeter. Upulie is a co-founder of Letters to Sir David Attenborough.

Daniel Midgley

Daniel Midgley is a linguist at the University of Western Australia. He is also a presenter on Talk the Talk, a weekly podcast and radio show on RTRFM 92.1 in Perth, discussing new and interesting ideas in the world of language. He blogs at Good Reason and on Google+.

Dr. Mick Vagg

Dr. Mick Vagg is Clinical Senior Lecturer at Deakin University School of Medicine, and Pain Specialist at Barwon Health. He’s a Co-founder of the Great Ocean Road Skeptics, and Fellow of the Institute for Science in Medicine. He often writes for The Conversation.

Micaela Jemison

Micaela Jemison is a bat ecologist and science communicator at the Department of Sustainability and Environment’s Arthur Rylah Institute for Environmental Research, a leading centre for applied ecological research.

Steve Nerlich

Steve Nerlich is the host of the Cheap Astronomy podcast and an occasional volunteer at CSIRO’s Canberra Deep Space Communications Complex. He is currently working on his PhD, looking into science education and careers.

Kate Naughton

Kate Naughton has recently finished her PhD thesis on the population genetics of shallow-water echinoderms, where she looked at how populations shift and respond to glacial cycles. She spent four years diving across the south coast of Australia and wrestling with DNA. This leaves her with qualifications in genetics, marine biology, and a scientific identity crises.

Dr. Rob Morrison

Dr. Rob Morrison is a co-founder and Vice President of Friends of Science in Medicine. He is perhaps best known for co-costing The Curiosity Show for 18 years. Rob has won two Eureka Prizes, was Senior Australian of the Year for South Australia in 2008 and is a Professorial Fellow at Flinders University.

Dr. Maia Sauren

Dr. Maia Sauren (pronounced MY-uh SO-ren) is an electrical engineer. She recently completed a PhD looking at the anatomic differences in people’s heads, and how those affect whether they’re safe while using mobile phones. While doing this work, Maia became fascinated by the wide disparity between how media presents mobile phone safety, and what the scientists say.

Dr. Sarah Keenihan

Dr. Sarah Keenihan is a writer for Adelaide-based science and consulting firm Bridge 8. Sarah has a PhD in Reproductive Immunology and is passionate about biology, technology, art and science communication.

Sumen Rai

Sumen Rai is an industry analyst for the defence and aerospace industry, a former teacher, and a science communicator. She’s particularly interested in climate change and sustainability, education and film-making.

Dr. Paul Willis

Dr. Paul Willis is the Director of RiAus, a national non-profit organisation with a mission to ‘bring science to people and people to science’. He is a palaeontologist, science journalist and broadcaster best known for his work as a presenter for ABC-TV’s Catalyst. You can follow his blog at RiAus here, and his tweets @fossilcrox.

Elf Eldridge

Elf Eldridge is a Physics PhD student at the MacDiarmid Institute where he works on developing nanopore technology. Elf is also a science communicator, a blogger for the SciBlogs network and co-host of The Official Sciblogs Podcast.

Vanessa Hill

Vanessa Hill is an education officer for CSIRO, Australia’s national science organisation. As a science communicator, she says she “makes science fun and accessible for all ages, and blows stuff up”. She blogs here and tweets at @nessyhill.

Adam vanLangenberg

Adam vanLangenberg is a secondary school maths teacher and coordinator of a sceptical society for teenagers. He is also a contributor to the pop-culture blog Subterranean Death Cult. He used to produce the Mathematical Punch-Ons podcast.

Joanne Benhamu

Jo Benhamu is a specialist nurse (Acute Care/Gastroenterology), a reporter for the Skeptic Zone podcast, and a committee member of Australian Skeptics. She has a passion for promoting science, reason and critical thinking in nursing while maintaining the philosophy of warmth and nurturing that lies at the heart of the profession.

Aimee Whitcroft

Aimee Whitcroft is a science blogger and co-founder of the SciBlogs network in New Zealand. She is also a co-host of The Official SciBlogs Podcast, founder and host of NerdNite Wellington and an organiser of Retake the Net. She’s also crazy enough to be doing the Mongol Rally next year. Her Twitter profile is @teh_aimee.

Dr. Rachael Dunlop

Dr. Rachael Dunlop is the Research and Communications Officer at the Heart Research Institute. She is a reporter for the Skeptic Zone podcast, and blogs at The Sceptics Book of Pooh Pooh. She is also vice president of Australian Skeptics and a member of Mystery Investigators science show for children. In 2010 Rachael won the Shorty Award in the Health category on Twitter.

Mike McRae

Mike McRae is a science writer for the CSIRO, and the author of Tribal Science: Brains, Beliefs and Bad Ideas. Tribal Science is a book that explores the history of science and how the human ‘tribal’ brain distorts good and bad science. He blogs here and is on Twitter at @TribalScientist.

Kylie Sturgess

Kylie Sturgess is an award-winning blogger and fellow podcaster. A Philosophy and Religious Education teacher with over ten years experience in education, Kylie has lectured on teaching critical thinking, feminism, new media and anomalistic beliefs worldwide.

Dr. Krystal Evans

Dr. Krystal Evans is a malaria researcher working at the Walter & Eliza Hall Institute and was instrumental in the Discoveries Need Dollars campaign for medical research funding. She is a regular panelist on 102.7FM Triple R’s science program Einstein a Go Go, and tweets frequently at @dr_krystal.

Belinda Nicholson

Belinda Nicholson is an a astrophysicist and Masters of Science student at Melbourne University. She is a podcaster for the Young Australian Skeptics, tweets here and very occasionally blogs here.

Tom Sidwell

Tom Sidwell has completed a Bachelor of Science, with majors in immunology and microbiology (minors in molecular biology and biochemistry). He is currently doing honours in immunology studying the development of regulatory T cells. He blogs at lymphosite and is on Twitter at kill3rTcell.

Simon Taylor

Simon Taylor is a magician, comedian, entertainer and writer with a fascination for the mind. His latest project, Flim Flam, is a weekly comic strip taking a humorous look at pseudo-science and the paranormal. His website is here, he blogs here and tweets at @mrsimontaylor.