Dark Energy
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"Unified Field Theory" |
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Now that we know the universe will continue to expand forever, we can begin to complete the first Friedmann equation, and determine the shape and geometry of our universe. At first glance, it would seem that the equation doesn’t quite add up, and that our universe is a hyperbolic plane. But when we add in the cosmological constant, the equation balances out, and we return to a flat universe.
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NOTHING: The Science of Emptiness
This program is part of The Big Idea Series, made possible with support from the John Templeton Foundation.
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The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future.
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Published on Sep 17, 2014
Why is there something rather than nothing? And what does ‘nothing’ really mean? More than a philosophical musing, understanding nothing may be the key to unlocking deep mysteries of the universe, from dark energy to why particles have mass. Journalist John Hockenberry hosts Nobel laureate Frank Wilczek, esteemed cosmologist John Barrow, and leading physicists Paul Davies and George Ellis as they explore physics, philosophy and the nothing they share.
Why is there something rather than nothing? And what does ‘nothing’ really mean? More than a philosophical musing, understanding nothing may be the key to unlocking deep mysteries of the universe, from dark energy to why particles have mass. Journalist John Hockenberry hosts Nobel laureate Frank Wilczek, esteemed cosmologist John Barrow, and leading physicists Paul Davies and George Ellis as they explore physics, philosophy and the nothing they share.
Dark Energy : Dark Matter : Dark Gravity
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Published on Apr 25, 2014
Dark energy and dark matter pervade the Universe. Professor Alan Heavens looks at how we find their properties and tests whether Einstein's gravity theory works in his inaugural lecture.
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Sun Seeker
Imperial's contribution to the Solar Orbiter mission, which will go closer to the Sun than anything so far, is ready to fly after extensive testing. |
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