Search results for plasma

Earth Sciences Jul 31, 2024

Space hurricanes swirl in the Southern Hemisphere, mostly in summer

Space hurricanes are a recently discovered geomagnetic phenomenon in which plasma interacts with Earth's magnetosphere, the area of space dominated by Earth's magnetic field. Spiral arms of plasma, hundreds of kilometers ...

Earth Sciences Jul 31, 2024

Study catalogs the most frequently used words in the archive of AGU journal article titles

Scientific studies have filled the pages of AGU journals for more than a century. These articles reveal how the study of geophysics has evolved alongside technology and societal interests and they tell the story of our expanding ...

Astronomy Jul 31, 2024

Astronomers find anomalies in star V889 Herculis's rotation

The sun rotates the fastest at the equator, whereas the rotation rate slows down at higher latitudes and is the slowest at the polar regions. But a nearby sun-like star—V889 Herculis, some 115 light years away in the constellation ...

Astronomy Jul 30, 2024

The sun's corona is weirdly hot, and Parker Solar Probe rules out one explanation

By diving into the sun's corona, NASA's Parker Solar Probe has ruled out S-shaped bends in the sun's magnetic field as a cause of the corona's searing temperatures, according to University of Michigan research published in ...

Materials Science Jul 30, 2024

Newly created super-black wood can improve telescopes, optical devices and consumer goods

Thanks to an accidental discovery, researchers at the University of British Columbia have created a new super-black material that absorbs almost all light, opening potential applications in fine jewelry, solar cells and precision ...

Planetary Sciences Jul 30, 2024

Solar storms could cause more auroras

Massive explosions on the sun have triggered warnings of geomagnetic storms that could create dazzling auroras in the northern United States, Europe and southern Australia from Tuesday night.

Earth Sciences Jul 30, 2024

Study reveals the Southwest Tianshan Mountains contribute the majority of the Kyzylkum desert sand and river system

Arid Central Asia is an important dust source in the northern hemisphere, which has a significant impact on the ecological environment of Central Asia, Northwest China and even the East Asian monsoon region. The Kyzylkum ...

Plasma Physics Jul 30, 2024

Madison Symmetric Torus operates stable plasma at 10 times the Greenwald Limit

If net-positive fusion energy is to ever be achieved, density is key: the more atomic nuclei crashing into each other, the more efficient the reaction will be. Nearly 40 years ago, Martin Greenwald identified a density limit ...

Plasma Physics Jul 29, 2024

When copper becomes transparent: European XFEL creates exotic matter

Experiments at European XFEL generate states of matter that are close to what occurs in the interior of planets or in the imploding capsule of an inertial fusion reactor. At the same time, they open up a way to measure ultra-short ...

Astronomy Jul 29, 2024

Why the solar corona is so much hotter than sun's surface

In a new study published in The Astrophysical Journal, a researcher from The University of Alabama in Huntsville (UAH), a part of the University of Alabama System, explores critical aspects of a phenomenon called kinetic ...

page 3 from 40