Outer space has emerged as the world's next battlefield, demonstrated by recent cyberattacks on satellites blamed on Russia. National security officials have said the Kremlin also is seeking to develop a space-based weapon that could knock out American satellites, potentially devastating the U.S. economy while leaving the country vulnerable to military attack. Officials in Washington are taking notice, investing in greater efforts to defend U.S. satellites while countering threats from China and Russia. One example is the U.S. Space Force, created in 2019 and tasked with protecting American interests in space.

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WASHINGTON — As soldiers, hikers and students can testify, it takes energy to haul around a heavy backpack. Now, researchers have developed a …

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An attempt to reduce jail overcrowding by allowing convicts to serve their sentence at home with a GPS monitoring anklet hasn't caught on with…