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plasmas

Photo looking down on Earth from a satellite, showing red and green streaks flickering in the atmosphere
Posted inNews

Eavesdropping on the Vibrations of Earth’s Magnetic Bubble

by Erin Martin-Jones 9 May 202316 May 2023

A NASA-funded crowdsourced science project has converted the unheard sounds resonating inside Earth’s magnetic shield into audible tracks, revealing an orchestra of whistles, wooshes, and chirps.

Graphs from the paper.
Posted inEditors' Highlights

Wind Shear Instabilities Emit Gravity Waves

by Yuichi Otsuka 27 April 202327 April 2023

A new study shows that atmospheric gravity waves can be generated by the Kelvin-Helmholtz instabilities in the wind shear layer.

An orange “doughnut,” the plasmasphere, encircles Earth, with curved lines representing Earth’s magnetic field arcing through it and the Moon in the background.
Posted inNews

Tides Ripple Across Earth’s Plasma “Donut”

Damond Benningfield, Science Writer by Damond Benningfield 4 April 20234 April 2023

Interactions between lunar gravity and the terrestrial magnetic field may cause a 90° offset from the Moon’s position in its orbit.

The laser device sits on top of Mount Säntis, shooting a green laser into a cloudy sky.
Posted inNews

How to Bend Lightning with a Laser Beam

by Bill Morris 24 February 202324 February 2023

For the first time, scientists have redirected lightning using a laser beam. And that’s just the start of what’s possible.

Photograph of the ionosphere taken from the International Space Station.
Posted inEditors' Vox

The International Reference Ionosphere – A Model Ionosphere

by Dieter Bilitza 15 February 202321 February 2023

An accurate and reliable description of Earth’s ionosphere is of critical importance because of our increased reliance on satellite technology and the significant impact the ionosphere has on it.

Computer-generated visualization of solar plasma interacting with Earth’s magnetic field.
Posted inFeatures

Space Raindrops Splashing on Earth’s Magnetic Umbrella

by Laura Vuorinen, Adrian LaMoury, Emmanuel Masongsong and Heli Hietala 7 October 202224 April 2023

Though not as damaging as extreme space weather events, showers of plasma jets hit Earth’s magnetic shield every day—yet we’re only beginning to understand their effects.

Diagram showing the interior of the Sun
Posted inFeatures

Shake, Rattle, and Probe

Damond Benningfield, Science Writer by Damond Benningfield 25 August 202217 January 2023

Helioseismology allows scientists to study the interior of the Sun, solve some basic physics mysteries, and forecast space weather.

The solar corona is visible during the total solar eclipse on 21 August 2017.
Posted inNews

A “Dam” in the Corona May Make the Solar Wind Gain Its Unusual Speeds

by Alakananda Dasgupta 8 June 20228 June 2022

A new study supports the idea of a “helicity barrier” influencing the fluctuating stream of interplanetary plasma.

A poof of red and yellow light shoots out of a dark red and black star
Posted inNews

Coronal Dimmings Shine Light on Stellar CMEs

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 6 June 202225 August 2022

Coronal mass ejections from stars have eluded easy observation, so scientists are looking at what’s left behind.

Artist’s impression of China’s Tianwen-1 spacecraft en route to Mars.
Posted inEditors' Highlights

First Solar Wind Plasma Observations from the Tianwen-1 Mission

by Limei Yan 6 May 20227 September 2022

Solar wind plasma data captured by the Tianwen-1 probe while in transit to Mars represent an important step toward a new era of cooperative Martian space exploration.

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