Enlarge / Debris from the upper stage of China's Long March 6A rocket captured from the ground by Slingshot Aerospace. (credit: Slingshot Aerospace)
The upper stage from a Chinese rocket that launched a batch of Internet satellites Tuesday has broken apart in space, creating a debris field of more than 300 objects in one of the most heavily-trafficked zones in low-Earth orbit.
US Space Command, which tracks objects in orbit with a network of radars and optical sensors, confirmed the rocket breakup Thursday. Space Command said the event created more than 300 pieces of trackable debris. The military's ground-based radars are capable of tracking objects larger than 10 centimeters (4 inches).
The culprit is the second stage of China's Long March 6A rocket, which lifted off Tuesday with the first batch of 18 satellites for a planned Chinese megaconstellation that could eventually number thousands of spacecraft. The Long March 6A's second stage apparently disintegrated after placing its payload of 18 satellites into a polar orbit at an altitude of roughly 500 miles (800 kilometers).
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