[time-nuts] Interesting timing application - Pulsar Timing Array

[Hal Murray]

Astronomers have been watching pulsars for a long time.

The periods change slightly.  It looks like they have enough data to detect 
gravitational waves from super massive black holes colliding.

LIGO is audio.  The pulsar work will be nano-Hertz.  How is that for a neat 
unit unit?
 


Astrophysicist explains big GRAVITATIONAL WAVE discovery! Are they NEW PHYSICS 
or merging SMBHs?
  https://www.youtube.com/watch?v=BUmJxZ7PQzw
24 minutes.

Time sink warning.  She's good.

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