How China Is Weathering the Trade War With Trump

Tariffs triggered a plunge in China’s exports to the United States, but its global trade surplus is larger because sales to other regions are surging.

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Quakes on Mars Reveal New Features of the Planet’s Interior

Using data from NASA’s retired InSight lander, two separate teams of researchers found evidence of a sluggish Martian mantle and a solid inner core.

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Man Wearing Neck Chain Is Pulled Into M.R.I. Machine, Police Say

The man, 61, was in critical condition after entering an exam room in Westbury, N.Y., on Long Island, without authorization while a scan was in progress, the authorities said.

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China Puts New Restrictions on E.V. Battery Manufacturing Technology

Beijing will now require government licenses for any effort to transfer abroad the technologies crucial for producing inexpensive electric cars.

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China Walks a Line in U.S. Trade Talks, Trying Not to Overplay Its Hand

China has leverage it can use by limiting access to its rare earth supplies, but it does not want to sacrifice its reputation as a reliable supplier.

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China’s Grip on an Obscure Rare Earth Metal Threatens the West’s Militaries

China produces the entire world’s supply of samarium, a rare earth metal that the United States and its allies need to rebuild inventories of fighter jets, missiles and other hardware.

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China Allows Limited Exports of Rare Earths as Shortages Continue

Beijing has approved more export licenses for the critical minerals and magnets in recent days, but supplies remain scarce and factories in the West are running out.

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Results of Muon Experiment Offer More Precision But No Added Clarity

The deviant behavior of a tiny particle called the muon might point to undiscovered forms of matter and energy in the universe. Or it might not.

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What to Know About China’s Halt of Rare Earth Exports

Since early April, China has stopped almost all shipments of critical minerals that are needed for cars, robots, wind turbines, jet fighters and other technologies.

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U.S. Dependence on China for Rare Earth Magnets Is Causing Shortages

The United States allowed its rare earth metals industry to move to China and could now face severe economic disruption as China limits crucial supplies.

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