8legs: Antarctica

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#1 out of 2

world1d ago

Yemen’s dramatic landscapes and architecture attract travelers despite ongoing safety concerns.
Papua New Guinea offers pristine waters and rugged terrain but remains costly to visit.
The Kerguélen Islands are extremely isolated and require expensive travel.
Nunavut’s remote reach is hampered by high air costs and scarce road access.
El Mirador in Guatemala requires a lengthy journey, either by helicopter or multi-day hike.
Antarctica remains a bucket-list destination due to its unique wildlife and glaciers.
Wapusk National Park offers polar bears but requires authorized tours and high costs.
French Polynesia is pristine but demands inter-island travel and higher expenses.
The Democratic Republic of Congo tempts with gorillas but poses safety risks.
Myanmar attracts tourists with history and temples, but ongoing conflict limits travel.
The list emphasizes bucket-list-worthy experiences despite travel risks.

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#2 out of 2

7h ago

Antarctic seismic data reveal widespread ultralow velocity zones along the core–mantle boundary.
HIPR-weighted seismic stacks enhanced signal quality to map the ULVZ more clearly.
Most ULVZs in the region measure about 14–20 kilometers thick, with some thinner and some thicker.
Geodynamic models show subducted oceanic material spreading along the core–mantle boundary.
The study argues subducted old oceanic crust and sediments best explain the widespread ULVZs.
ULVZs may influence how heat escapes from the Earth's core and affect mantle plumes.
The team used 227 seismic events from Antarctica to build their analysis.
Researchers screened data with strict criteria to confirm ULVZ evidence.
The findings suggest a global, pervasive ULVZ layer rather than isolated pockets.
Limitations include resolution gaps for very thin crust and potential modeling simplifications.
The research was published in Science Advances and summarized by The Brighter Side of News.

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