Shane Larson, professor of
astronomy and physics at Northwestern and a LIGO member, discussed the
significance of this tremendous discovery with us this Friday, February 26, at
Revolution Books Chicago.
Here's what Dr Larson wrote
as an introduction:
"Virtually everything
we know about the Universe has been discovered from the study of photons ---
light in all its myriad forms from radio waves, to visible light, to x-rays and
beyond. At the dawn of the 21st century, advanced technology is providing
access to the Cosmos through detection of ripples in the fabric of spacetime
itself.
"These ripples in
spacetime, called gravitational waves, carry information not in the form of
light or particles, but in the form of gravity itself. LIGO has made the first
detection of gravitational waves: they were the messenger which carried the
story to Earth of two black holes colliding 1.3 billion lightyears away.
"This
talk will explore the modern description of gravity, what gravitational waves
are and how we hope to measure them, and what we hope to learn from their
detection. Gravity has a story to tell, and in this talk, we'll explore some of
discoveries we hope to make by listening."