How much does planet Earth weigh?

The @ sign goes by many names today, but it's only so commonplace because of medieval merchants and one 1970s programmer. Learn more about the at sign (or arroba, Klammeraffe, strudel, grisehale, or gül) in this episode of BrainStuff, based on this article: https://people.howstuf ... Show More

A human fetus doesn't develop retinas until around gestational week 28. Learn how researchers have tried to figure out what babies can see in the few remaining weeks before they're born in this classic episode of BrainStuff, based on this article: https://health.howstuffworks.com ... Show More

You could probably outsprint an alligator no matter what pattern you ran in -- but it's extremely unlikely that you'd ever need to. Learn how alligators do and don't attack in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/reptiles/alligator- ... Show More

Daniel and Jorge explain how we might be able to listen to a new kind of gravitational hiss and what secrets it could reveal. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

Daniel and guest host Kelly Weinersmith count the number of moons orbiting the Earth! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

Daniel and Jorge talk about the amazing physics of space DUST. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

Daniel and Katie talk about the biggest possible scoop of solar-system gelato, and what it might mean for the future of humanity! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.