An army of people worked to replace acres of windows shattered by the enormous explosion from a meteor, which crashed to earth in Russia's Ural Mountains.
The fireball that streaked into the sky over the tough industrial city of Chelyabinsk at about sunrise on Friday was undeniably traumatic, with nearly 1,200 people reported injured by the shockwave from the explosion, estimated to be as strong as 20 Hiroshima atomic bombs.
But it also brought a sense of co-operation in a troubled region. Large numbers of volunteers came forward to help fix the damage caused by the explosion and many residents came together on the internet - first to find out what happened and soon to make jokes.
Many joked on Saturday about what had happened in the troubled pocket of Russia, with one of the most popular jests: Residents of the meteor were terrified to see Chelyabinsk approaching.
Chelyabinsk, nicknamed Tankograd because it produced the famed Soviet T-34 tanks, can be as grim as its backbone heavy industries. Long winters where temperatures routinely hit minus-30C (minus-22F) add to a general dour mien, as do worries about dangerous facilities in the surrounding region.
In 1957, a waste tank at the Mayak nuclear weapons plant in the Chelyabinsk region exploded, contaminating 9,200 square miles and prompting authorities to evacuate 10,000 nearby residents. It is now Russia's main nuclear waste disposal facility and a vast plant for disposing of chemical weapons lies 50 miles east of the city.
"The city is a place where people always seem bitter with each other," said music teacher Ilya Shibanov. But the meteor "was one of the rare times when people started to live together through one event". "For most people, it's a good excuse for a joke." It also is why Mr Shibanov quickly concocted a rap video that got wide internet attention, including the lines: "Pow, pow, pow - everything flew and factory windows crumbled. This Friday the bars are going to be full, so be ready for the aftermath."
But for many, it provided a reason to roll up their sleeves and get to work repairing the more than 4,000 buildings in the city and region where windows were shattered, or to provide other services. More than 24,000 people, including volunteers, mobilised to cover windows, gather warm clothes and food, and make other relief efforts, the regional governor's office said. Crews from glass companies in adjacent regions were being flown in.
Governor Mikhail Yurevich said that damage from the high-altitude explosion is estimated at 1 billion rubles (£21 million). He promised to have all the broken windows replaced within a week. But that is a long wait in a frigid region. The midday temperature in Chelyabinsk was minus-12C (10F) on Saturday and for many the immediate task was to put up plastic sheeting and boards on shattered residential windows.
Meanwhile, the search continued for major fragments of the meteor. In the town of Chebarkul, 50 miles west of Chelyabinsk, divers explored the bottom of an ice-crusted lake looking for meteor fragments believed to have fallen there, leaving a six-metre-wide hole. Emergency Ministry spokeswoman Irina Rossius said the search had not found anything.