via Daily Galaxy:
What if the time part of the the space-time continuum equation was literally running out? Perhaps evidence suggests that time is slowly disappearing from our universe, and will one day vanish completely –a radical theory may explain a cosmological mystery that has puzzled scientists for years.
Scientists previously have measured the light from distant exploding stars to show that the universe is expanding at an accelerating rate. They assumed that these supernovae are spreading apart faster as the universe ages. Physicists also assumed that a kind of anti-gravitational force must be driving the galaxies apart, and started to call this unidentified force “dark energy”.The idea that time itself could cease to be in billions of years – and everything will grind to a halt – was proposed in 2009 by Professor José Senovilla, Marc Mars and Raül Vera of the University of the Basque Country, Bilbao, and University of Salamanca, Spain. The corollary to this radical end to time itself is an alternative explanation for “dark energy” – the mysterious antigravitational force that has been suggested to explain a cosmic phenomenon that has baffled scientists.
However, to this day no one actually knows what dark energy is, or where it comes from. Professor Senovilla, and colleagues have proposed a mind-bending alternative. They propose that there is no such thing as dark energy at all, and we’re looking at things backwards. Senovilla proposes that we have been fooled into thinking the expansion of the universe is accelerating, when in reality, time itself is slowing down. At an everyday level, the change would not be perceptible. However, it would be obvious from cosmic scale measurements tracking the course of the universe over billions of years. The change would be infinitesimally slow from a human perspective, but in terms of the vast perspective of cosmology, the study of ancient light from suns that shone billions of years ago, it could easily be measured.
The team’s proposal, published in the journal Physical Review D, dismisses dark energy as fiction. Instead, Senovilla says, the appearance of acceleration is caused by time itself gradually slowing down, like a clock with a run-down battery.
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