Astronomy Cast

Wizzard Media

Science & Medicine, Natural Sciences

Chart Positions

Science & Medicine 25
Natural Sciences 10

Astronomy Cast brings you a weekly fact-based journey through the cosmos.


Ep. 102: Gravity

August 18th, 2008

Episode 105 of 460 episodes

You seem to like a nice series, so here's a new one we've been thinking about. Over the course of the next 4 weeks, we're going to cover each of the basic forces in the Universe. And this week, we're going to start with gravity; the force you're most familiar with. Gravity happens when masses attract one another, and we can calculate its effect with exquisite precision. But you might be surprised to know that scientists have no idea why gravity happens.

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