In this week’s news roundup: Earth might have previously had a giant ring of space rocks like the one around Saturn, “scuba diving” lizards are using bubbles to breathe, and a new study mapped brain changes in a person throughout pregnancy. Additionally, we describe how NASA’s stranded astronauts will vote from space. E-mail us at [email protected] if you have any questions, comments or ideas for stories we should cover! Discover something new everyday: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.  Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. This episode was edited by Anaissa Ruiz Tejada. Shayna Posses and Aaron Shattuck fact-check our show. Our theme music was composed by Dominic Smith. Learn more about your ad choices. Visit megaphone.fm/adchoices