The Cosmic Calendar
The universe’s age of 13.8 billion years seems like an almost abstract concept to us. We know it’s a huge number, but we can’t really grasp the enormity of it. That’s why the concept of the Cosmic Calendar is so useful: It compresses the entire age of the universe in a time scale that we can all understand - an entire calendar year: 12 months, 365 days. At this scale, there are 438 years per second, 1.58 million years per hour, and 37.8 million years per day.
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