It now seems that our entire universe is living on borrowed time. How long it can survive depends on whether Stephen Hawking's theory checks out. Special thanks to Ivan Bridgewater for use of footage.
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... is just a blip compared to the age of the universe, at 13.7 billion years and counting.