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 sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

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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.

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How Pregnancy Changes the Brain, and How Lizards Make DIY Scuba Gear