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Scientist warns shortest day in history is coming in WEEKS as Earth's rotation unexpectedly speeds up
A scientist has warned that Earth's rotation is unexpectedly accelerating, leading to the shortest day in history. Graham ...
Physics World21h
New definition of second ticks closer after international optical-clock comparison
“The optical clock community is strongly motivated to obtain the best possible set of measurements before the SI second is ...
Daniel Kleppner, MIT prize-winning physicist, dies at 92
He developed technologies that helped pave the way for the Global Positioning System and made foundational discoveries that ...
Bulletin of the Atomic Scientists2d
Special operations by Israel and Ukraine were immediate tactical successes. Their strategic impact will take more time to assess
Despite achieving their immediate tactical objectives, Israel's and Ukraine's covert operations have yet to show their impact on strategic stability.
Analysis-U.S. strikes on Iran's nuclear sites set up "cat-and-mouse" hunt for missing uranium
The U.S. and Israeli bombing of Iranian nuclear sites creates a conundrum for U.N. inspectors in Iran: how can you tell if ...
U.S. strikes on Iran's nuclear sites set up "cat-and-mouse" hunt for missing uranium
How can you tell if enriched uranium stocks, some of them near weapons grade, were buried beneath the rubble or were secretly ...
Daniel Kleppner, prize-winning physicist, dies at 92
The MIT professor, a recipient of the National Medal of Science, developed technologies that helped pave the way for the Global Positioning System.