NASA eyes possibility of Delaware-sized iceberg off Antarctica

The National Aeronautics and Space Administration is keeping an eye on a 70-mile long rift in an Antarctica ice shelf that could eventually produce a Delaware-sized iceberg and contribute toward raised sea levels.The crack in the Larsen C ice shelf also is more than 300 feet wide and approximately a third of mile deep, according to the space agency. Once the crack goes all the way across, it could produce an iceberg the size of state between New Jersey and Maryland.That’s much larger by far than the iceberg that sank the Titanic. That one was estimated to be 200-400 feet long.An ice shelf is the floating part of a glacier. When it collapses, the ice behind it speeds toward the ocean, where it can contribute to a rie in sea level, according to NASA.Scientists taking part in NASA’s annual IceBridge mission to measure changes in the polar ice and sea discovered the crack last month, according to NASA.Operation IceBridge employs the most precise instruments ever to fly over Antarctica, NASA scientist John Sonntag told the Christian Science Monitor.The mission goes over the Arctic and the Antarctic, the most remote place on earth, NASA said.”Why do we do this?” asked NASA deputy administrator Dava Newman in a social media presentation. “It’s critically important for all of us, all of humanity, especially looking at sea rise and climate change.”

Source: NASA eyes possibility of Delaware-sized iceberg off Antarctica

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