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☆ The US Army Corps of Engineers is dredging the Mississippi River and racing to keep the sea from contaminating drinking water
  + stars: | 2022-10-22 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com   time to read: +5 min
The Mississippi River is at record low levels, stranding barges and allowing sea water to move in with no end in sight. The US Army Corps of Engineers is emergency dredging to keep the channel open to supply barges. Barges, stranded by low water, sit at the Port of Rosedale along the Mississippi River on October 20, 2022 in Rosedale, Mississippi. USACE is racing to build a 1,500-foot-wide, 35-foot-tall underwater levee to prevent saltwater from creeping further up the river, where it could contaminate drinking water. An underwater sill is constructed near the mouth of the Mississippi River to block seawater pushing up river, on October 18, 2022.
☆ NASA tries fueling moon rocket in test, but leak reoccurs
  + stars: | 2022-09-21 | by ( Associated Press | ) www.nbcnews.com   time to read: +2 min
CAPE CANAVERAL, Fla. — NASA’s new moon rocket sprouted another fuel leak Wednesday as engineers tested the plumbing ahead of a launch attempt as early as next week. Engineers halted the flow and warmed the lines in hopes of plugging the leak, and proceeded with the test. Wednesday’s leak came close to the limit, but the launch team managed to get the leak down to acceptable levels as the test continued. Besides replacing seals, NASA altered the fueling process, easing more slowly into the loading of the super-cold liquid hydrogen and oxygen. NASA’s Space Launch System rocket is more powerful than the Saturn V rocket that sent Apollo astronauts to the moon during the late 1960s and early 1970s.
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