At this New York health centre, wedged between housing projects to the east and Chinatown to the west, "dancing with the stars" means dancing with a physical therapist.
By 2011 debris in the center of the ring, which is about a light-year in diameter, was blazing more intensely as the supernova entered a new stage of stellar demise.
Probably everyone with a portable device has once logged on to a public WiFi network without paying for it, while they are having a coffee, on a train, in a shopping mall or at a hotel.
For five days, Barnes and his coworkers rode out the storm and its aftermath, providing live reports and photos from their refuge in the downtown offices of Zipa Hosting and DirectNIC.
Such arrangements, made possible by high-speed Internet connections between homes, offices and data centers, aim to ease users' technology headaches and, in some cases, cut their costs.
At the main entrance is a community center, which houses a puppet theater, workshop, and a bakery that prepares fresh bread daily for one of the restaurants.