Sphere’s the deal in Las Vegas after dizzying, dazzling year — but MSG boss James Dolan aims for even more

It’s been a year of Sphere.

Twelve months in, the otherworldly Las Vegas orb and its vivid visuals have become a top tourist attraction in seen-it-all Sin City.

Owner James Dolan is only too happy to have an audience. In fact, last Thursday — Independence Day — he added audio to an already mesmerizing, patriotic display of fireworks and heartstring-plucking Americana that was sure to bring scores to witness the spectacle on Sands Avenue.

Those who can’t get to the Strip could even join a new, continuous 24-hour livestream of the venue to celebrate.

Dolan — boss of Madison Square Garden, plus the New York Knicks and Rangers — said those additions were “natural” and all part of the journey for the futuristic dome, which he believes is still developing its unique identity, with more changes to come.

“The exosphere, we still haven’t quite decided what it is yet. I think there’s a lot further we can go … like be able to see through it.” Dolan told The Post, adding that the reception for his beloved, brightly-lit ball — with ripple effect like surging room rates at hotels that offer Sphere views — has astonished even him.