How many moons does the Earth have?

Daniel and Kelly slow down to understand what velocity really means, and how much we have of it.See omnystudio.com/listener for privacy information. 

Daniel and Kelly talk about the problem of time in quantum mechanics and how the past might depend on the future.See omnystudio.com/listener for privacy information. 

Astronauts left over a hundred items on the moon's surface. But are today's telescopes powerful enough to see what's there?

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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

Astronauts have left over a hundred items on the moon's surface. Learn what telescopes are powerful enough to spot them in this classic episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy informati ...  Show more

In this episode of BrainStuff, Marshall explains the physics behind satellites and orbits.

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