Tag

Plasma Waves

All articles tagged with #plasma waves

science10 hours ago•6 min saved

Martian Whistler Reveals First Lightning-like Discharge on Mars

NASA’s MAVEN spacecraft analyzed 108,418 plasma‑wave recordings and identified a single whistler—a descending-tone radio signal produced by a lightning-like discharge interacting with Mars’ crustal magnetic field on the night side at about 349 km altitude—showing that electrical discharges occur in Mars’ atmosphere and that the underlying plasma physics mirrors Earth’s lightning. The event was rare, but its energy at the source could be comparable to strong Earth lightning, with potential implications for prebiotic chemistry on Mars.

via ScienceAlert|

#lightning #mars #maven

science6 months ago•3 min saved

Scientists Discover New Plasma Wave in Jupiter's Aurora

NASA's Juno spacecraft discovered a new type of plasma wave associated with Jupiter's auroras, revealing unique interactions between charged particles and the planet's magnetic field, which could enhance understanding of space weather and planetary protection mechanisms.

via Space|

#jupiter-auroras #magnetosphere #nasa-juno-spacecraft

science6 months ago•3 min saved

Scientists Discover New Plasma Wave in Jupiter's Aurora

Scientists using NASA's Juno spacecraft discovered a new type of plasma wave associated with 'alien auroras' on Jupiter, revealing how charged particles interact with the planet's magnetic field under extreme conditions, which could improve understanding of space weather and planetary magnetic shielding.

via yahoo.com|

#auroras #jupiter #nasa-juno

science7 months ago•3 min saved

Voyager 1 Captures Mysterious Plasma Waves Crossing Jupiter's Magnetosphere

Voyager 1's 1979 crossing of Jupiter's bow shock captured mysterious plasma wave sounds, revealing the planet's immense and complex magnetic environment, and providing valuable insights into planetary magnetospheres and solar wind interactions.

via The Daily Galaxy|

#jupiter #magnetosphere #plasma-waves

science7 months ago•3 min saved

New Type of Plasma Wave Discovered Above Jupiter’s North Pole

NASA's Juno spacecraft discovered a new type of plasma wave near Jupiter's poles, revealing unusual oscillations in the planet's magnetosphere that could enhance understanding of planetary magnetic fields and atmospheres, with implications for studying exoplanets.,

via Gizmodo|

#exoplanets #juno-spacecraft #jupiter

science1 year ago•4 min saved

"Scientists Capture First Focused Plasma Wave on the Sun"

Scientists have observed plasma waves from a solar flare being focused by a coronal hole for the first time, similar to how lenses focus light. This discovery, made using data from NASA's Solar Dynamics Observatory, could help diagnose plasma properties and investigate wave focusing in other astronomical systems.

via Phys.org|

#coronal-hole #magnetohydrodynamics #plasma-waves

science-and-technology2 years ago•4 min saved

"Unveiling the Impact of Collisions on Ion Surfing in Fusion Experiments and Beyond"

Collisions between fast ions and plasma waves in fusion experiments can affect the efficiency of energy transfer and the behavior of particles. Different types of collisions, such as diffusive scattering and convective drag, compete to determine the resonance between fast ions and waves. Researchers have used mathematical calculations and computer simulations to understand these interactions and develop models for sustaining fusion reactions. This understanding can also be applied to astrophysical research and gravitational interactions in galaxies. The study reveals that drag collisions can shift the speed at which resonance occurs, creating new resonances and extending the range of interaction. The derived resonance function provides insights into wave-particle interactions in plasmas and can be used to improve simulations for developing commercial fusion power plants.

via Phys.org|

#collisions #fast-ions #fusion-experiments

science-and-technology2 years ago•2 min saved

Eerie Solar System Sounds Unveiled by NASA

NASA has released eerie solar system recordings that capture the sounds of our cosmos. By converting plasma waves into sound, scientists have discovered that each celestial object in our solar system emits its own unique sound. From the roaring hum of the Sun to the chirps of Jupiter's moons, these recordings offer an audible look into the cosmos. The recordings also extend beyond our solar system, capturing sounds from supermassive black holes and other celestial phenomena. While these recordings may not replace your favorite tunes, they provide a new way to experience the wonders of space.

via Giant Freakin Robot|

#celestial-objects #nasa #plasma-waves

space-science2 years ago•3 min saved

"NASA Unveils Eerie Soundscapes from the Solar System"

NASA has released haunting recordings of the Solar System, converting plasma waves and radio waves into sound. Each celestial body has its own unique sounds, from the Sun's constant roar to Saturn's eerie sci-fi movie soundtrack. Even Jupiter's moons emit robotic blips and bleeps, while Mars captures the haunting sounds of its winds. Converting light into sound helps scientists uncover hidden details and provides a mesmerizing experience for those seeking to explore the vastness of space.

via ScienceAlert|

#nasa #plasma-waves #solar-system

astronomy2 years ago•3 min saved

"Enormous Plasma Waves Emanate from Massive Star, Potentially Causing Gigantic Tidal Phenomena"

Astronomers have used computer simulations to study the massive tides on the star MACHO 80.7443.1718, which create plasma waves 2 million miles high, three times larger than the Sun. These waves are caused by the gravitational forces between the star and its smaller companion, resulting in extreme tides that rise and fall in a regular rhythm. The breaking of these plasma waves affects the star's rotation and orbit, with each wave releasing a significant amount of energy. This discovery suggests that MACHO 80.7443.1718 is just the first of a new class of objects with extreme plasma tidal waves.

via Inverse|

#astronomy #astrophysics #computer-simulations

science-and-technology2 years ago•2 min saved

"Spine-Chilling Sound of Saturn Unveiled in Haunting Recording"

Powerful recordings of Saturn's plasma waves, converted into an audio file, reveal an eerie sound that evokes the atmosphere of a horror film. The recording was made by translating the plasma waves, which carry energy like air or water, into a "whooshing" audio file, similar to how a radio translates electromagnetic waves into music.

via Boing Boing|

#audio-file #enceladus #plasma-waves

space2 years ago•3 min saved

Unraveling Jupiter's Enigmatic Plasma Waves

NASA's Juno spacecraft has observed humongous plasma waves, known as Kelvin-Helmholtz instabilities (KHIs), in Jupiter's atmosphere. These waves occur when plasma from the solar wind interacts with the magnetopause, the outer level of Jupiter's magnetic field. The difference in velocity between the magnetopause and solar wind creates swirling vortex waves. Juno has provided the most extensive observations of these waves on Jupiter, shedding light on their formation and behavior. The waves result from plasma interactions and can push charged particles throughout the magnetopause. While similar waves exist on Earth, they are more prevalent above Jupiter.

via Ars Technica|

#juno-spacecraft #jupiter #kelvin-helmholtz-instabilities

space-science2 years ago•2 min saved

"Discovery: Jupiter's Magnetosphere Reveals Massive Swirling Plasma Waves"

Giant swirling plasma waves, known as Kelvin-Helmholtz waves, have been detected at the boundary of Jupiter's magnetosphere by NASA's Juno spacecraft. These waves, caused by differences in velocity between two fluids, provide insights into the transfer of mass and energy from the solar wind to Jupiter's environment. Similar waves have been observed in Earth's magnetosphere and near Saturn, but their formation is not well understood. Studying these waves at Jupiter's magnetopause could help scientists understand the dynamics at play in the outer reaches of the Solar System.

via ScienceAlert|

#jupiter #kelvin-helmholtz-waves #magnetosphere

space-science2 years ago•8 min saved

The Silent Void: Debunking the Myth of Soundless Space

While there is no sound that humans can hear in the vacuum of space, there are still waves that propagate through the low-density plasma in interplanetary space. The solar wind, released by the Sun, creates plasma waves that can be converted into radio waves and then back into sound when they reach Earth's ionosphere. These waves have implications for star formation and can be used in asteroseismology to study the interior properties of stars. Additionally, supermassive black holes can generate plasma ripples that produce musical notes, although they are too deep for humans to hear. In the Solar System, there are possibilities of finding extraterrestrial sounds on planets with atmospheres, such as Venus and Mars.

via IFLScience|

#asteroseismology #plasma-waves #solar-wind

science2 years ago•4 min saved

Coldest region of the sun holds key to heating its million-degree corona, study reveals.

Scientists have discovered intense wave energy from a cool, dark, and strongly magnetized plasma region on the sun, capable of traversing the solar atmosphere and maintaining temperatures of a million degrees Kelvin inside the corona. The discovery was made using the 1.6-meter Goode Solar Telescope at Big Bear Solar Observatory. The finding is the latest key to unraveling a host of related mysteries pertaining to Earth's nearest star, including the coronal heating problem, which has existed for nearly a century.

via Phys.org|

#coronal-heating-problem #goode-solar-telescope #plasma-waves