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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 | Darwin Building (link Map)
access via Malet Place | London | WC1E 6BT | United Kingdom

Open to: Academic | Alumni | Public | Student
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.
Ticketing: Open

Speaker information

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.


Dan Martin
020 7679 7675 | dan.martin@ucl.ac.uk


Click here to watch this lecture streamed live online at 1.15pm on 25 November