12 Season
397 Episode
PBS Space Time - Season 2020 Episode 13 How We Know The Earth Is Ancient
In astronomy we talk about billions of years like it’s no big deal. But how can we be sure about timescales so far beyond the capacity for human intuition? Our discovery of what we now call deep time is very recent - as recent as our discovery of the true spatial vastness of our universe. And it came as scientists tried to measure the age of the Earth. What they found was as shocking and humbling as anything seen through the telescope.
- Country : United States of America
- Genre : Documentary, Talk
- Director :
- Cast : Matthew O’Dowd
