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Video courtesy W.M. Keck Observatory, edited by Dave Corrigan

VIDEO: Keck Talk – Dark Energy And The Runaway Universe
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by Big Island Video News
on Feb 26, 2019 at 7:12 am

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STORY SUMMARY

WAIMEA, Hawaiʻi - Alex Filippenko, Professor Of Astronomy at the University Of California - Berkeley, talks about the mysterious part of the universe.

(BIVN) – A recent Keck Talk by Alex Filippenko, a Professor Of Astronomy at University Of California, Berkeley, focused on dark energy, the mysterious force that seems to be accelerating the expansion of the Universe.

According to the promotional write-up for the free talk held at the Kahilu Theatre in Waimea:

We expected the attractive force of gravity to slow down the rate at which the universe is expanding. However, observations made at Keck Observatory of very distant exploding stars show that the expansion rate is actually speeding up.

Over the largest distances, the universe seems to be dominated by a mysterious, repulsive “dark energy” that stretches space itself faster and faster with time. But the physical origin and nature of dark energy, which makes up about 70 percent of the contents of the universe, may be the most important unsolved problem in all of physics.

The most recent data yield an additional surprise: the current rate of expansion is even faster than expected, perhaps showing that dark energy is growing stronger or revealing a new type of fundamental particle.


Filed Under: Kohala Tagged With: Alex Filippenko, dark energy, Keck Observatory

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