How much does planet Earth weigh?

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Our bodies can often prevent us from catching the same illness twice, and vaccines use that bodily system to prevent us from getting sick in the first place. Learn how the immune response works, what goes into vaccines, and why vaccines are safe for kids in this episode of BrainS ... Show More

In the 1960s, advances in technology allowed brave aquanauts to explore deeper into the ocean than ever before, but the project was shut down. Learn how Sealab worked -- and how that technology is still used today -- in this classic episode of BrainStuff.See omnystudio.com/listen ... Show More

Daniel talks about how astronomers can measure or deduce the mass of a star, and why it controls its fate. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

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. 

How many stars can we see in the sky? Thousands? Billions? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

What does it mean for gravity to make waves? How do we see them? 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. 

Can gravity waves kill you? Why do we have particles? Can fission power a star? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

The Kepler Telescope has detected hundreds of exoplanets in our galaxy. What's the story behind it and how does it work? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

Is it possible to negate gravity without using energy? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.