Following (Thursday's) yesterday’s launch, the core stage of China’s Long March 5B rocket inadvertently went into low Earth orbit. The booster—now spinning out of control—is poised to perform an uncontrolled reentry from orbit, potentially threatening inhabited areas. As SpaceNews reports, the core stage will likely fall from low Earth orbit at some point in the next few days, making it one of the biggest human-made objects to perform an uncontrolled reentry. The gigantic core stage, measuring 98 feet (30 meters) long and 16 feet (5 meters) wide, might burn up during atmospheric reentry, but debris could potentially reach the surface....