Show Notes 19 September 2025
Story 1: Researchers building RoboBalls to explore other planets
Source: The Purdue Exponent, a student-run newspaper serving the Purdue community in West Lafayette, Indiana Story by Dean Murray

• Link: https://www.purdueexponent.org/news/national/researchers-building-roboballs-to-explore-other-planets/article_2c06a5ae-3b24-5834-bfc8-9f7df72e299c.html
• See the school’s website for the project: https://rad.engr.tamu.edu/roboball-i/
• See the school’s video here: https://www.youtube.com/watch?v=tKRN0EEJ5VE
• See video here: https://www.facebook.com/reel/637417789106125
• And see video posted on this article from MSN: https://www.msn.com/en-gb/video/news/researchers-working-on-swarm-of-roboballs-to-send-to-other-planets/vi-AA1LSgsN?t=72

Story 2: This paint sweats to cool off buildings. No energy required.
Source: Anthropocene Magazine

• Link: https://www.anthropocenemagazine.org/2025/06/new-paint-sweats-to-cool-off-buildings/
• See research paper here: https://www.science.org/doi/10.1126/science.adt3372
• See also: https://www.msn.com/en-us/lifestyle/lifestyle-buzz/researchers-develop-extraordinary-paint-that-can-sweat-to-keep-buildings-cool-a-practical-and-long-term-solution/ar-AA1L7zL9

Story 3: Biochar from Human Waste Offers a Circular Solution to Fertilizer Shortages - Excrement contains nutrients needed for crop growth and a new source of them could cut farming’s huge CO2 output
Source: The Guardian

• Link: https://www.theguardian.com/science/2025/aug/11/biochar-from-human-waste-could-solve-global-fertiliser-shortages-study-finds
• See research paper here: https://www.pnas.org/doi/abs/10.1073/pnas.2503668122
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