Cosmology 101: Can We Go Back to Before Time Equals Zero? (Lecture 1 of 6)
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YouTubeDr Brian Keating
Cosmology 101: Can We Go Back to Before Time Equals Zero? (Lecture 1 of 6)
Can we go back to before time equals zero? What does that even mean? A physicist explains why cosmology is the oldest science, how we know the age of the universe to within hours, and why the biggest questions in physics are also questions of philosophy. This is Lecture 1 of 6 in the Intro to Cosmology series. For full access to all 6 lectures ...
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