On September 14th 2015 two giant laser interferometers known as
LIGO, the most sensitive scientific instruments ever built, detected
gravitational waves from the merger of a pair of massive black holes
more than a billion light years from the Earth. LIGO estimated that
the peak gravitational wave power radiated during the final moments
of this merger was more than ten times greater than the combined
light power from all the stars and galaxies in the observable Universe.
Join Professor Martin Hendry as he recounts the inside story of this
remarkable discovery - hailed by many as the scientific breakthrough
of the century. Learn about the amazing technology behind the LIGO
detectors, which can measure the signatures of spacetime ripples
less than a million millionth the width of a human hair, and explore the
exciting future that lies ahead for gravitational-wave astronomy as we
open an entirely new window on the Universe.