Search results for terminal velocity

Earth Sciences Mar 17, 2024

Greenland Ice Sheet motion minimally impacted by late-season melting, study finds

Ice melting has become an ever-pressing concern in recent decades as climate change has brought evocative images of lone polar bears floating on unsustainable small blocks of sea ice. Yet, the consequences are far-reaching ...

Space Exploration Feb 28, 2024

Research on dynamics and FNTSM control of spacecraft with a film capture pocket system

In recent years, with the significant increase in space launch activities, the number of deorbited spacecraft has sharply risen, posing a serious impact on both active orbiting spacecraft and future space activities. Traditional ...

Soft Matter Jan 30, 2024

How measuring Reynolds similitude in superfluids could help demonstrate existence of quantum viscosity

Every fluid—from Earth's atmosphere to blood pumping through the human body—has viscosity, a quantifiable characteristic describing how the fluid will deform when it encounters some other matter. If the viscosity is higher, ...

General Physics Dec 19, 2023

Snowflake accelerations mysteriously follow a predictable pattern

A winter wonderland calls to mind piles of fluffy, glistening snow. But to reach the ground, snowflakes are swept into the turbulent atmosphere, swirling through the air instead of plummeting directly to the ground.

Earth Sciences Aug 25, 2023

Tides may be responsible for up to 69% of under-ice melting in an Antarctica ice shelf

The ice shelves—the marine-terminating glaciers of the Antarctic Ice Sheet—are melting, and it's not just because of rising atmospheric temperatures. In a one-two punch, ice shelves in Antarctica are fighting a losing ...

Space Exploration May 17, 2023

Origami heat shield: Reusable for reentries

A novel origami-based heat shield developed with ESA support is planned to be tested with an actual atmospheric reentry from space. Named Pridwen, after the legendary shield of King Arthur, this reusable design will spring ...

Space Exploration May 3, 2023

European company designs a space station with artificial gravity

The International Space Station (ISS) is nearing the end of its service. While NASA and its partners have committed to keeping it in operation until 2030, plans are already in place for successor space stations that will ...

Planetary Sciences Dec 19, 2022

Are planets tidally locked to red dwarfs habitable? It's complicated

Astronomers are keenly interested in red dwarfs and the planets that orbit them. Up to 85% of the stars in the Milky Way could be red dwarfs, and 40% of them might host Earth-like exoplanets in their habitable zones, according ...

Space Exploration Dec 6, 2022

Proposing a new idea for spacecraft propulsion that involves dynamic soaring

A team of researchers from McGill University and the Tau Zero Foundation is proposing a new idea for faster spacecraft propulsion that involves dynamic soaring. In their paper published in the journal Frontiers in Space Technology, ...

Earth Sciences Oct 14, 2022

Study reveals new insights into how fast-moving glaciers may contribute to sea level rise

Climate change is resulting in sea level rise as ice on land melts and oceans expand. How much and how fast sea levels will rise in the near future will depend, in part, on the frequency of glacier calving events. These occur ...

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