Michael has since apologized for both incidents, took a brief detour as a SPAC CEO, yet found himself back in Washington when Donald Trump tapped him in December 2024 to become undersecretary of defense for research and engineering—effectively the Pentagon’s chief technology officer. The Senate confirmed him in 2025, installing a Silicon Valley–trained business executive at the center of how the War Department thinks about AI, autonomy, and advanced weapons systems.
There is a plan to prevent such a strike—the Space Surveillance Network, a bevy of sensors that the military uses to track space debris. NASA monitors what’s unofficially known as the “pizza box,” a sort of no-fly zone around the ISS. When pieces of debris are predicted to enter the box—if there’s at least a 1 in 100,000 chance of collision—mission controllers order avoidance maneuvers, firing thrusters that move the ISS and dodge the trash. The technique has been used dozens of times since the first ISS module launched in 1998. But the system only tracks about 45,000 larger pieces, and all sensors have noise. Plus, risk thresholds can miss stuff, sometimes badly. In 2025, Chinese astronauts were briefly stranded at their station after debris hit their return vehicle.
。WPS下载最新地址是该领域的重要参考
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但a16z的美国活力团队今年集体转向，旗帜鲜明地押注物理世界的重建。