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Trump urges other nations to send ships to secure Hormuz

US President Donald Trump on Saturday urged other nations to send ships to help secure the Strait of Hormuz, the critical chokepoint for global oil supplies disrupted by the Mideast war. Trump, who has said the United States will soon start escorting tankers through the strait,

Dry ice detected in a planetary nebula for the first time

An international team of astronomers has employed the James Webb Space Telescope (JWST) to observe a complex planetary nebula known as NGC 6302. The observations, detailed in a paper published Feb. 25 on the arXiv pre-print server, resulted in the discovery of dry (carbon

Pi and the Seductions of Infinity

This essay and poem are part of the Universe in Verse book. “My business is circumference,” Emily Dickinson wrote in one of her most cryptic letters. Since ancient times, human beings have been enchanted by the immutable relationship between the circumference of a circle and