In this week's science roundup: drinking raw milk was always risky, but now there are added concerns over the spread of bird flu into dairy cows. An intense geomagnetic storm led to stunning auroras across the globe last week–and similar storms could mess with satellites and electricity infrastructure. Plus, hurricane forecasts are on the horizon. Email us at [email protected] if you have any questions, comments or ideas for stories we should cover! And discover something new everyday by subscribing to Scientific American or signing up for our daily newsletter.  Science Quickly is produced by Rachel Feltman, Kelso Harper, Carin Leong, Madison Goldberg and Jeff DelViscio. This episode was hosted by Rachel Feltman. Our show is edited by Elah Feder, Alexa Lim, Madison Goldberg and Anaissa Ruiz Tejada, with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith. Learn more about your ad choices. Visit megaphone.fm/adchoices