This week, Stu lets us into the secret world of moss, how they're different to other plants, and how they're so hardy they can even survive on the outside of spacecraft; and Claire gets her teeth into a new, large longitudinal study that showed water fluoridation did not harm cognition or IQ. Maeng, Chang-hyun et al., Extreme environmental tolerance and space survivability of the moss, Physcomitrium patens. iScience, Volume 0, Issue 0, 113827 (2025). DOI: 10.1016/j.isci.2025.113827 John Robert Warren et al., Childhood fluoride exposure and cognition across the life course. Sci. Adv. 11, eadz0757 (2025). DOI:10.1126/sciadv.adz0757

Chris and Linden talk through the Prime Minister's Science prize, awarded in early November, and Linden chats with Dr. Grace Sethanant, and earthquake expert, about her work on Australia's weird earthquakes.

This week on Lost in Science Stu checks in on the cutting edge of CRISPR — the revolutionary gene-editing technology promising to change how we treat diseases. Is it living up to the hype? And as we head into the holiday season, Chris is getting practical with physics, applying maths and motion to the age-old problem of how to pack your bag efficiently.

Revisiting some past stories from episodes of Lost in Science Fiction, we look at the science contained in (and the science inspired by) Star Wars, 2001: a Space Odyssey, and Ad Astra

This week the team explore the science behind some science fiction classics. How strong would a tornado have to be to suck up the shark from Jaws? Would murderous robots in the future really be human-like? And what is the best science fiction movie, according to quantum physicists?

This week, Linden reveals a new study into predicting the tipping points when mathematicians have a sudden “ah-ha!” moment when working on a blackboard; and Claire stuns us all with research that found a single ant was able to lay eggs for two different species.S. Tabatabaeian, A. O’bi, D. Landy, & T. Marghetis, An information-theoretic foreshadowing of mathematicians’ sudden insights, Proc. Natl. Acad. Sci. U.S.A. 122 (35) e2502791122, https://doi.org/10.1073/pnas.2502791122 (2025).Juvé, Y., Lutrat, C., Ha, A. et al. One mother for two species via obligate cross-species cloning in ants. Nature 646, 372–377 (2025). https://doi.org/10.1038/s41586-025-09425-w

This week we pay tribute to the science winners at this year's Nobel prizes, though possibly not as much fun as the Ignobels from last week, they will definitely get people thinking (and solving problems) if not laughing as much about the research.

In this week's episode we welcome two more students from the University of Melbourne's Science Communication program. Carola explores her own family history through the story of Mendel's peas, while Lucy spills the tea on how the world's scientists rejected the idea of the Anthropocene as a geological era.

A recent study suggests elephants have nicknames for each other. Find out more with Jessica on this week's episode. Photo by Nam Anh on Unsplash In this week's episode we welcome two students from the University of Melbourne's Science Communication program. Jessica and Niqi discuss the amazing communication styles of elephants, and try to quash bad news stories about ravens from around the world.

Stu talks to Ted Vanderfeen, a Palawa man from Peerapper lands in Northern Tasmania who has shifted his sights to space exploration. He tells us about his work in the US at the NASA jet propulsion laboratory through the Australian National Indigenous Space Academy and his current work on mechatronics with CSIRO.