Stars are born in clouds of gas and dust, making it difficult to observe their early development. But researchers at Chalmers have now succeeded in simulating how a star with the mass of the sun absorbs material from the ...
Astronomy
7 hours ago
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21
An international research team, working with cutting-edge technology at the University of Nebraska–Lincoln, has made a discovery that may dramatically expand the materials used in next-generation, energy-efficient memory ...
Nanophysics
Jan 8, 2025
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37
A study published in The Astrophysical Journal Letters, introduces a newly defined "filament channel" function. This new function provides a novel theoretical foundation for predicting solar eruptions by determining whether ...
Astronomy
Jan 7, 2025
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19
Numerous memory types for computing devices have emerged in recent years, aiming to overcome the limitations imposed by traditional random access memory (RAM). Magnetoresistive RAM (MRAM) is one such memory type which offers ...
Condensed Matter
Jan 7, 2025
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34
Colloidal quantum dots (QDs) constitute a platform to explore various quantum effects. Their size-dependent colors are essentially a naked-eye, ambient-condition visualization of the quantum confinement effect.
Nanophysics
Jan 7, 2025
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27
Getting a spacecraft to another star is a monumental challenge. However, that doesn't stop people from working on it. The most visible groups currently doing so are Breakthrough Starshot and the Tau Zero Foundation, both ...
Space Exploration
Jan 6, 2025
3
58
Fast radio bursts (FRBs) are notoriously difficult to study. They are flashes of radio light that can outshine a galaxy but often last for only a fraction of a second. For years, all we could do was observe them by random ...
Astronomy
Jan 6, 2025
0
19
At the start of this new year, we look back at close-up pictures and solar flare data recorded by the ESA-led Solar Orbiter mission over the last three years. See and hear for yourself how the number of flares and their intensity ...
Astronomy
Jan 6, 2025
0
8
A large team of researchers with varied backgrounds at the Chinese Academy of Sciences has found evidence of a weak magnetic field on the moon approximately 2 billion years ago. In their study published in the journal Science ...
Fast radio bursts are brief and brilliant explosions of radio waves emitted by extremely compact objects such as neutron stars and possibly black holes. These fleeting fireworks last for just a thousandth of a second and ...
Astronomy
Jan 1, 2025
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Magnetic fields surround magnetic materials and electric currents and are detected by the force they exert on other magnetic materials and moving electric charges. The magnetic field, at a given point, is specified by both a direction and a magnitude (or strength); as such it is a vector field.
In special relativity, the electric field and magnetic field are two interrelated aspects of a single object, called the electromagnetic field. A pure electric field in one reference frame is observed as a combination of both an electric field and a magnetic field in a moving reference frame.
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