Time is flying by on this busy, crowded planet as life changes and evolves from second to second. And yet the arc of human lifespan is getting longer: 65 years is the global average way up from just 20 in the Stone Age. Modern science, however, provides a humbling perspective. Our lives indeed the life span of the human species are just blips compared to the age of the universe, at 13.7 billion years and counting. It now seems that our entire universe is living on borrowed time. How long it can survive in any form depends on whether Stephen Hawking's theory checks out.
Channels:
Cosmology
Major questions in astronomy
Added: 766 days ago by
lonewolf
Runtime: 01:00 |
Views: 191 |
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short video of absolute certainty
Channels:
Solar Astronomy
Added: 1186 days ago by
cornelius
Runtime: 00:40 |
Views: 427 |
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