Astronomers studying the atmospheres of several intensely heated exoplanets uncovered an unexpected pattern that may…
Browsing: Magnetic Fields
Magnetic fields are invisible forces that exert influence on magnetic materials and charged particles. They are produced by moving electric charges, such as the flow of electrons in a wire, or by intrinsic magnetic properties of materials like iron. The Earth itself has a magnetic field, generated by the movement of molten iron in its outer core, which protects the planet from solar and cosmic radiation and is responsible for phenomena such as the auroras. Magnetic fields are quantified by their strength and direction, and they are depicted visually through field lines that emerge from north magnetic poles and enter south magnetic poles. These fields play crucial roles in various technologies, from simple compasses for navigation to complex applications like magnetic resonance imaging (MRI) in medical diagnostics. Additionally, magnetic fields are fundamental in physics, influencing many processes from the atomic to the cosmic scale, including the behavior of plasmas in stars and the interstellar medium.
Researchers say the isolated white dwarfs Gandalf and Moon-Sized define a new class of stellar…
Scientists have achieved a first in studying lanthanum superhydrides, a class of materials that could…
Deep within massive rocky exoplanets, hidden oceans of molten rock may be generating powerful magnetic…
Scientists have introduced a microscopy technique that reveals a hidden layer of chemistry involving molecules…
Strange magnetic surges above the Moon have baffled scientists for years. A new model points…
Galactic magnetic fields may arise surprisingly fast, driven by collapsing plasma and turbulent flows. How…
Primordial magnetic fields may help explain why measurements of the universe’s expansion do not agree.…
Ancient rocks reveal that Earth’s magnetic field during the Ediacaran may not have been chaotic…
New observations are helping scientists peer beneath the Sun’s surface, revealing where its magnetic activity…
Deep beneath the ocean floor, ancient sediments hint that Earth’s magnetic field sometimes changed far…
Ancient magnetic fossils reveal that animal navigation using Earth’s magnetic field may have evolved far…
An Auburn University study finds that magnetic fields can guide electrons in plasma much like…
Researchers have identified an unexpected link between atomic magnetism and carbon mobility in steel. Researchers…
A detailed suite of simulations conducted by astrophysicists at the Flatiron Institute and their collaborators…
Scientists found that carbon enabled Earth’s core to solidify. Without it, the inner core may…
Seismic studies reveal Mars may have a solid inner core. The result deepens knowledge of…
The early Universe hosted ultra-weak magnetic fields that still shaped cosmic structures. New simulations establish…