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13:15 - 13:55 25 November 2010
LUNCH HOUR LECTURE: Light and Darkness in the Accelerating Universe
Darwin Lecture Theatre - accessed via Malet Place |
access via Malet Place | London | WC1E 6BT | United Kingdom
Admission: Free and open to anyone on a first-come first-served basis. Lectures are also streamed live online or can be downloaded after the event.
Professor Ofer Lahav, UCL Physics & Astronomy
One of the greatest mysteries in science is the prospect that 75% of the Universe is made up from a substance known as ‘Dark Energy’, which causes an acceleration of the cosmic expansion. Since a further 21% is made up from invisible ‘Cold Dark Matter’ that can only be detected through its gravitational effects, that leaves the ordinary atomic matter making up only 4% of the total cosmic budget
This lecture will review the chequered history of Dark Energy, not only since Einstein's proposal for a similar entity, but by tracing the concept back to Newton. This lecture will summarise the current evidence for Dark Energy and future surveys in which UCL is heavily involved: the "Dark Energy Survey", the Hubble Space Telescope and the proposed Euclid space mission.This lecture marks the 350 year anniversary of the foundation of the Royal Society.
020 7679 7675 | firstname.lastname@example.org
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