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National

News and analysis of the scientific advances fueling AI and quantum computing, revolutionizing biology and medicine, and tackling climate change. Science is changing the world and colliding with the global politics that shape it.

Science

Space Force becomes the newest branch of the U.S. military

Some 16,000 personnel who worked at the Air Force Space Command were reassigned to the branch.

Animated GIF of a constellation in the shape of a soldier

Space

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Politics

<p>The U.S. Space Force has become the sixth and newest branch of the nation&#x27;s military, after President Trump signed the <a class="gtmContentClick" data-vars-link-text="National Defense Authorization Act" data-vars-click-url="https://www.whitehouse.gov/briefings-statements/remarks-president-trump-signing-ceremony-s-1790-national-defense-authorization-act-fiscal-year-2020/" data-vars-content-id="c6c3288e-fe4a-400a-a7cd-c598ad2a8253" data-vars-headline="Space Force becomes the newest branch of the U.S. military" data-vars-event-category="story" data-vars-sub-category="story" data-vars-item="in_content_link" href="https://www.whitehouse.gov/briefings-statements/remarks-president-trump-signing-ceremony-s-1790-national-defense-authorization-act-fiscal-year-2020/" target="_blank">National Defense Authorization Act</a>.</p><blockquote>Space is the world’s new war-fighting domain.&quot;</blockquote><cite>— President Trump&#x27;s <a class="gtmContentClick" data-vars-link-text="remarks" data-vars-click-url="https://www.youtube.com/watch?v=qylzX5r8Z8M" data-vars-content-id="c6c3288e-fe4a-400a-a7cd-c598ad2a8253" data-vars-headline="Space Force becomes the newest branch of the U.S. military" data-vars-event-category="story" data-vars-sub-category="story" data-vars-item="in_content_link" href="https://www.youtube.com/watch?v=qylzX5r8Z8M" target="_blank">remarks</a> at the launch</cite>

Tuesday's science stories

Space Force becomes the newest branch of the U.S. military