#209

The saga of the room-temperature superconductor continues. The creators of a new material called LK-99 maintain that it perfectly conducts electricity at room temperature and pressure and so other scientists are racing to try to test it for themselves. If the findings are true it would be transformative to science and technology. It’s not just researchers, however, who are testing the material, citizen scientists are also trying to create it at home. Early results are now in.

There’s a plan to pump millions of tonnes of carbon dioxide into the seafloor off Canada’s west coast, but some worry that this could trigger earthquakes. A new study works out just how likely that would be.

Earth to Voyager, this is NASA – do you copy? NASA has lost contact with the Voyager 2 space probe but all is not lost. The team discusses the future of the mission, as well as that the Euclid space telescope has just come online and started sending back its first images.

A blood test for Alzheimer’s has gone on sale that may indicate your risk of developing the disease before symptoms show. But how accurate is the test? And if you find out you’re at risk, is there anything you can do about it?

Plus: How the foundations of your house could store energy, how the Maillard reaction – responsible for the deliciousness of toast – can happen on the ocean floor, and the discovery of the world’s oldest jellyfish fossil.

Hosts Timothy Revell and Christie Taylor discuss all of this with guests Karmela Padavic-Callaghan, Clare Wilson, Leah Crane and James Dinneen. To read about these subjects and much more, you can subscribe to New Scientist magazine at newscientist.com.

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S7 Bonus: Björn Kolbeck, Quobyte