Junky Low Orbits Around Earth

An increasingly-obnoxious problem (Feb. 21):

On February 19th, late-night sky watchers across Australia witnessed a bright explosion followed by a debris cloud that hung in the sky for nearly an hour. At first a mystery, the source of the blast is now understood. It was a Russian Briz-M rocket booster misplaced in orbit last year by the failed launch of an Arabsat communications satellite. The fuel tanks of the Briz-M ruptured on Feb. 19th, producing a vivid naked-eye display and more than 1000 pieces of debris. Experts are calling this a "major breakup event," comparable to or even worse than last month's Chinese anti-sat test.