MSG Sphere in Las Vegas covered in swirling lava visuals ahead of opening

Footage has emerged of the Populous-designed MSG Sphere in Las Vegas lit up with cascading red and yellow lights and the greeting "Hello World" on its LED screen.
The sphere, which is being designed by stadium specialist Populous for the company behind New York's Madison Square Garden (MSG), will be the world's largest spherical structure when it opens in September.
The venue has the world's largest LED screen. Image courtesy of MSG Sphere
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