Geoff Brumfiel
Stories
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Bombing a nuclear site. What are the risks?
If the U.S. does drop a powerful "bunker buster" bomb on a suspected underground nuclear weapons site in Iran, experts in radiation hazards say there is little risk of widespread contamination.
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If a U.S. 'bunker buster' hits a nuclear site, what might get released into the air?
So far, strikes on Iran's facilities have created limited chemical and radiological hazards. Experts say that's not likely to change even if the U.S. uses a big bomb.
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Israel and U.S. intelligence differ on status of Iran's nuclear program. Who's right?
Israeli Prime Minister Netanyahu says Iran is "marching very quickly" toward a nuclear weapon. The U.S. intelligence community says Iran suspended its nuclear weapons program decades ago. Who's right?
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President Trump fires a member of the Nuclear Regulatory Commission
Christopher Hanson was appointed to serve on the commission overseeing the nation's nuclear reactors by President Biden in 2020.
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Israel expands strikes on Iran's nuclear facilities
Early satellite imagery appears to show some damage at Iran's main site.
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How the U.S. became highly reliant on Elon Musk for access to space
Besides its flights to the International Space Station and Starship program, SpaceX is deeply embedded in the Department of Defense. The feud between Elon Musk and President Trump could end all that.
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What the Musk-Trump feud means for SpaceX
The relationship breakdown between Elon Musk and the Trump administration could have big implications for Musk's company SpaceX, which the U.S. relies on for space- and defense-related services.
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Elon Musk's Starship rocket will try to launch again tonight
After two spectacular failures, SpaceX is hoping this test flight will go more smoothly for the behemoth rocket.
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Trump seeks to boost nuclear industry and overhaul safety regulator
A series of executive orders aims to promote new kinds of nuclear reactors while restructuring the body in charge of nuclear safety.
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Trump unveils ambitious and expensive plans for 'Golden Dome' missile defense
The plan includes a vast array of space-based sensors and interceptors.