The First Nanoseconds

Click here to sign up for FREE at Brilliant and the first 200 people to sign up get 20% off the annual subscription: Once upon a time, 13.8 billion Earth years ago, the Universe was very very small, but also infinite in size, as it has always been. You might rightfully ask – what? And I’m here to explain. The First Nanoseconds. Sciencephile Merch: