How do we know the mass of stars?

Daniel and Kelly get answers to listener questions about why we age from Dr. Venki Ramakrishnan, author of "Why We Die: The New Science of Aging and the Quest for Immortality".See omnystudio.com/listener for privacy information. 

Daniel and Kelly talk about how gravity, magnetism and relativity work together to create one of the most brilliant spectacles in the Universe.See omnystudio.com/listener for privacy information. 

Daniel and Kelly talk to Phil Metzger about the engineering challenges of building self-replication space probes.See omnystudio.com/listener for privacy information. 

Since astronomers can't actually travel to a star, they rely on two ingenious methods to measure a star's distance from earth. Listen in as Marshall Brain breaks down the science of space measurement in this editor's choice podcast from HowStuffWorks. Learn more about your ad-cho ... Show More

Like most things in the universe, stars begin as particles floating around in massive clouds of dust and gas. But what forces these particles to coalesce and form a star? Tune in and learn more about the birth of stars in this podcast. Learn more about your ad-choices at https:// ... Show More

After our sun dies, it and many other stars will eventually crystallize. Learn how astrophysicists figured this out -- and how it works -- in today's episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for pri ... Show More

As far as weight goes, Earth is a pretty hefty celestial body. But exactly how heavy? And how does one measure something so massive? Find out in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listene ... Show More

If you guessed 'gravity' you're right -- but a few specific factors make Jupiter so much moonier than planets like Earth. Learn more in this episode of BrainStuff.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy inf ... Show More

Meteors can put on a spectacular show, but many of the pieces of debris that cause them are the size of pebbles -- or dust. Learn more about meteorites in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listen ... Show More

On a clear night, the stars seem to wink and twinkle in the sky. Learn why in this classic episode of BrainStuff, based on this article: https://science.howstuffworks.com/why-do-stars-twinkle.htm Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystud ... Show More

In this episode of BrainStuff, Marshall explains the physics behind satellites and orbits. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

The atoms in your heart once burned in the fires of a dead star. Does this constitute an almost-spiritual connection to the cosmos or is it mere chemistry? In this episode, Robert and Julie discuss the billion-year-old carbon inside us. Learn more about your ad-choices at https:/ ... Show More