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The U.S. government tracks 500,000 chunks and bits of space junk as they hurtle around Earth. Some 20,000 of these objects are larger than a softball.To clean up the growing mess, scientists at the University of Surrey have previously tested a net to catch chunks of debris. Now, they've successfully tested out a harpoon.
NASA's long-lived Hubble Space Telescope captured vivid bright clumps moving through the cosmos at some 1,000 light years from Earth. The space agency called these objects clear "smoking gun" evidence of a newly formed star — as new stars blast colossal amounts of energy-rich matter into space, known as plasma.