Einstein's Messengers (2009) - FAQ
Frequently asked questions about this film.
What is LIGO?
LIGO is a revolutionary observatory built to detect gravitational waves, which are ripples in the fabric of space-time caused by massive objects colliding or changing speed.
How long did it take to plan and construct LIGO?
LIGO took 20 years in planning and a dozen more years in construction before it began searching the cosmos.
What does general relativity say about gravity?
General relativity redefines gravity as a distortion of space and time, rather than a simple attraction between objects.