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Science

Scientists discover an unexpected phase transition in the high explosive TATB

LLNL and the University of Nevada, Las Vegas researchers report a previously unknown pressure-induced phase conversion in TATB over 4 GPa (40,000 atmospheres pressure). Picture of Adam Connell / TID Researchers from the Lawrence Livermore National Laboratory (LLNL) in collaboration with the University of Nevada Las Vegas (UNLV) have discovered a previously unknown pressure-induced phase transition for TATB that can …

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Finally, Hiroshima's ghost lie has been discovered in physical form

What happened to Hiroshima? Everyone thinks they know the answer, and yet it doesn't make it strange. History tells us that Hiroshima was destroyed by the first atomic bomb deployed in war on August 6, 1945. But what happened to the actual city when it was consumed in its terrible, unforgettable fire? Where did Hiroshima go? We could finally get …

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Blue Moon and the infrastructure of space settlement

Jeff Bezos unveils a full-scale mockup of the Blue Moon lunar lander May 9 in Washington. (credit: Blue Origin) by Jeff Foust Monday, May 13, 2019 There was a lunar lander behind that curtain. That was the thought most people had last Thursday afternoon as they stepped into a ballroom at the Washington Convention Center for an event by Blue …

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Scientists: Global carbon dioxide hits record level

“We don't know a planet like this.” That was the reaction of meteorologist Eric Holthaus to news that atmospheric carbon dioxide levels have reached heights not in the entirety of human existence – not history, existence. According to data from the Mauna Loa Observatory in Hawaii, the concentration of CO2 in the atmosphere is over 415 parts per million (ppm), …

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What is gravity?

May 12, 2019, 10:18 UTC By Dan Falk What could be more known than gravity? Drop something and gravity pulls it to the floor, right? And in school, we learn that gravity is what drives the moon in orbit around Earth, and Earth in its own orbit around the sun. Gravity keeps feet planted on the floor. It controls the …

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