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solar wind

Posted inEditors' Vox

Chasing Down the Slow Solar Wind

by L. E. Kepko 20 June 201618 July 2023

The Sun's plasma blasts Earth’s magnetosphere at more than a million miles per hour. The fastest pours from holes in the corona, but until recently the source of the "slow" solar wind was a mystery.

Artist’s impression of Pluto, with its wispy atmosphere.
Posted inResearch Spotlights

Pluto's Interactions with the Solar Wind Are Unique

by L. Bernard 24 May 201616 November 2021

Space physicists say that Pluto's atmosphere interacts with the solar wind in a never-before-seen hybrid way, one that's both comet-like and planet-like.

Artist's rendering of NASA's MAVEN spacecraft, which observes interactions between the solar wind and the upper atmosphere of Mars.
Posted inResearch Spotlights

Mysterious Heavy Ion Beams Above Mars Explained

by Mark Zastrow 20 May 20164 May 2022

NASA's latest mission to Mars has uncovered the origins of fast-moving streams of particles high above the planet, flowing against the solar wind.

Posted inResearch Spotlights

New Solar Wind Model Could Improve Space Weather Forecasts

Sarah Stanley, Science Writer by Sarah Stanley 26 February 201618 October 2022

Real-world data drive a simulation that successfully predicts Sun structures and interplanetary solar wind dynamics.

Posted inResearch Spotlights

Satellites Test Theory of Magnetic Reconnection

by Mark Zastrow 2 February 201618 July 2023

A quartet of satellites flying through Earth's magnetic field measures its interaction with the Sun's and puts a theory about their reconnection to the test.

Posted inResearch Spotlights

Sun's Magnetic Field Impacts Earth's Thunderstorms

Sarah Stanley, Science Writer by Sarah Stanley 29 January 201620 December 2021

Lightning strikes are more frequent when Earth encounters a polarity switch in the solar magnetic field.

Posted inResearch Spotlights

Refining Solar Wind Models to Better Predict Space Weather

by E. Betz 2 September 201526 January 2022

Despite decades of space-based observations of the Sun, scientists still struggle to make precise predictions of the solar wind.

Posted inResearch Spotlights

X Marks the Spot of Magnetic Islands in Space

by Mark Zastrow 17 June 201518 July 2023

At the edge of Earth's magnetic field, satellites have found X-shaped fields and fast-moving "islands" of magnetism that could shed light on the physics of solar storms.

Posted inResearch Spotlights

Scientists Watch Solar Winds Blast Mercury's Magnetic Field

by E. Betz 25 March 201518 July 2023

A NASA team used the MESSENGER spacecraft to analyze Mercury's magnetosphere during intense solar wind pressure.

Posted inResearch Spotlights

Large-Scale Electric Currents May Flow Through Mercury's Crust

by J. Orwig 18 March 201516 November 2021

NASA's MESSENGER spacecraft discovered electric currents in Mercury's magnetosphere directed toward and away from the planet. Do the currents reach the planet? If so, where do they go?

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