Ablation, as a physical phenomenon, refers to the progressive removal of material from a surface through processes such as vaporization, sublimation, melting, or mechanical erosion driven by an external energy or mass flux. It is characterized by the conversion of incident energy (thermal, radiative, or kinetic) into phase change and material loss, often accompanied by the formation of boundary layers, receding interfaces, and evolving surface morphology. In scientific contexts, ablation is quantitatively described by mass loss rates, energy balance equations, and material response functions, and is critical in modeling high-enthalpy flows, laser–matter interactions, and other environments with extreme heat or particle loads.
NASA's Artemis II mission sent four astronauts around the moon and brought them safely back to Earth, laying a foundation for crewed flights to the moon's surface.
Space Exploration
Oct 15, 2026
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When a spacecraft reenters Earth's atmosphere at hypersonic velocities, its protective heat shield faces extreme conditions, including temperatures beyond 3,000 degrees Fahrenheit (1,650 degrees Celsius). To survive, the ...
Space Exploration
Sep 26, 2026
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Each summer, researchers from Hokkaido University returned to the Qaanaaq Ice Cap in northwestern Greenland to measure changes in the ice surface using aluminum poles drilled into the ice. Their 13-year record shows how the ...
Earth Sciences
Sep 18, 2026
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On June 29, 2026, the snow accumulated by Switzerland's glaciers over the course of the previous winter had melted. Known as Glacier Loss Day, this date marks the point at which further melting begins to erode the glaciers' ...
Earth Sciences
Sep 17, 2026
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When will the glacier in your valley disappear? Will the glacier you visited as a child still exist in 2050? And how much difference would limiting global warming make?
Earth Sciences
Sep 11, 2026
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Swiss glaciers are set to lose an enormous amount of ice due to the heat wave battering Europe, the head of Glacier Monitoring in Switzerland (GLAMOS) told AFP.
Environment
Jun 27, 2026
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From June 29 onward, Switzerland's glaciers will have exhausted their snow reserves. Every liter of meltwater now causes them to lose mass—this is Glacier Loss Day. Between the extreme years of 2003 and 2022 alone, 200 square ...
Environment
Jun 26, 2026
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480
The astronauts Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen are preparing to launch into space on a trajectory that will make them the first humans to travel to the moon in over half a century.
Space Exploration
Mar 30, 2026
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Alaska's glaciers respond to climate change by melting for three additional weeks with every 1 degree Celsius increase in the average summer temperature, data from satellite-mounted radars show.
Earth Sciences
Mar 21, 2026
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40
The glacier located near Sunlight Peak, Wyo., has been its icy self since the Yellowstone region's last major glaciation occurred some 20,000 years ago. The bulk of Sunlight's ice has remained ensconced in its northern Rocky ...
Earth Sciences
Mar 2, 2026
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