SoT 216: Wobble When They Waddle

Hosts: Ed Brown, Dr. Shayne Joseph, Penny Dumsday, Lucas Randall.

Listen to this episode: (35:19)

A team of astronomers have traced the origins of a Fast Radio Burst – a sudden, high energy blast or radio waves – to a galaxy 6 billion light years away. This has helped them find ‘regular’ matter (not dark matter or dark energy) that was previously missing.

An experiment in Antarctica set out to see how a penguin’s walk – or waddle – changes with variations in body mass. To do this it was necessary to put the penguins on treadmills. For science!

A new study has found that Lyme Disease can be caused, rarely, by a different bacterial species to the one that usually gets all the blame. And this new species could cause more serious symptoms, from vomiting to neurological issues.

Some bacteria have a mechanism for releasing extra long spears to puncture cellular membranes and release molecules on demand. They get eaten by other bacteria, then puncture the cell wall and release poison. Now a team at the Wyss Institute have developed a technique to activate these spears, and could one day use them to deliver drugs and beneficial molecules.