Engineering

NASA's Laser Communications Relay: A year of experimentation

NASA's first two-way laser relay system completed its first year of experiments on June 28—a milestone for a game-changing technology that could be the future for sending and receiving data from space.

Business

China becomes world's top patent filer: UN

China last year became the world leader in international patent filings, unseating the United States which had held the top spot for more than four decades, the UN said Tuesday.

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