Mapping out the heliosphere, Earth's protective bubble
Much as we may treasure and proclaim our independence, we actually live in a protective bubble called the heliosphere.
Astronomy
Sep 19, 2025
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News on solar wind particles
Predicting the green glow of aurorae on the red planet
Planetary scientists believe they can now predict the green glow of an aurora in the night sky above Mars, and they have the images to prove it.
Planetary Sciences
Sep 10, 2025
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How the moon's hidden protection shields against solar wind erosion
The moon's thin atmosphere, called an exosphere, has been a puzzle to science for some time. Two main processes were thought to create this wispy gas envelope; tiny meteoroids hitting the surface and solar wind particles ...
Planetary Sciences
Jul 22, 2025
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Spacecraft equipped with a solar sail could deliver earlier warnings of space weather threats to Earth's technologies
The burgeoning space industry and the technologies society increasingly relies on—electric grids, aviation and telecommunications—are all vulnerable to the same threat: space weather.
Space Exploration
Jul 14, 2025
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Astrophysicists explore our galaxy's magnetic turbulence in unprecedented detail using a new computer model
Astronomers have developed a computer simulation to explore, in unprecedented detail, magnetism and turbulence in the interstellar medium (ISM)—the vast ocean of gas and charged particles that lies between stars in the ...
Astronomy
May 13, 2025
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Video: Watch wind whirl from the sun
Aside from sunlight, the sun sends out a gusty stream of particles called the solar wind. The ESA-led Solar Orbiter mission is the first to capture on camera this wind flying out from the sun in a twisting, whirling motion. ...
Astronomy
Mar 27, 2025
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Neutrinos could tell us about the inside of the sun and establish density structure
Neutrinos generated through solar fusion reactions travel effortlessly through the sun's dense core. Each specific fusion process creates neutrinos with distinctive signatures, potentially providing a method to examine the ...
General Physics
Mar 6, 2025
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Scientists spot tiny sun jets driving fast and slow solar wind
In 2023, the European Space Agency reported on Solar Orbiter's discovery of tiny jets near the sun's south pole that could be powering the solar wind. The team behind this research has now used even more data from the European ...
Astronomy
Feb 5, 2025
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New model predicts solar storm particle acceleration and escape
The sun, a searing hot sphere of gas primarily composed of hydrogen and helium, boasts surface and outer atmospheric temperatures ranging from 10,000 to 3.6 million degrees Fahrenheit on its surface and its atmosphere's outermost ...
Planetary Sciences
Jan 18, 2025
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Cosmic shock waves: Unraveling the mystery of electron acceleration
Scientists have come a step closer to understanding how collisionless shock waves—found throughout the universe—are able to accelerate particles to extreme speeds.
Plasma Physics
Jan 13, 2025
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