The 4 km-long-arms of the @LIGO gravitational waves detector featured in @apod. Stay tuned! apod.nasa.gov/apod/ https://t.co/igQNjx4F69
The 4 km-long-arms of the @LIGO gravitational waves detector featured in @apod. Stay tuned! apod.nasa.gov/apod/ https://t.co/igQNjx4F69