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Science

A Pinnacle of Coral Is Discovered in Australia’s Great Barrier Reef

Explorers of the Great Barrier Reef have discovered a giant pinnacle of coral.This week, a team of scientists reported finding a detached coral feature that rises from the seabed to a height of nearly one-third of a mile — taller than the Empire State Building. Its discoverers call it the first large new element of Australia’s famous reef system to be identified in more than 120 years.Moreover, the new reef is flourishing, in contrast to many ill ones in the Great Barrier and around the globe. Corals in warm, polluted waters often suffer environmental stresses that can turn them white and, if prolonged, kill them off. The wastage is known as coral bleaching.“It was a good day” when the team brought the massive new reef to light for the first time, said Robin Beaman of James Cook Univers...

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Science

New Video Shows Largest Hydrogen Bomb Ever Exploded

Hydrogen bombs — the world’s deadliest weapons — have no theoretical size limit. The more fuel, the bigger the explosion. When the United States in 1952 detonated the world’s first, its destructive force was 700 times as great as that of the atomic bomb that destroyed Hiroshima.And in the darkest days of the Cold War, the Soviets and the Americans didn’t only compete to build the most weapons. They each sought at times to build the biggest bomb of all.“There was a megatonnage race — who was going to have a bigger bomb,” said Robert S. Norris, a historian of the atomic age. “And the Soviets won.”Last week, the Russian nuclear energy agency, Rosatom, released a 30-minute, formerly secret documentary video about the world’s largest hydrogen bomb detonation. The explosive force of the devic...

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