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Auroral phenomena

Jupiter’s aurora captured by the Hubble Space Telescope
Posted inNews

Computers Tease Out Secrets of Jupiter’s Aurorae

by Nola Taylor Tillman 21 November 2019

Aurorae once classified by human eyes are now being sorted by machines. The change may help astronomers understand how the mysterious features are powered.

Auroras seen from the International Space Station
Posted inResearch Spotlights

Bringing Clarity to What Drives Auroras

by Mark Zastrow 24 April 2019

A new classification scheme helps researchers distinguish what accelerates the electrons that create auroras.

A view of the aurora-like phenomenon dubbed STEVE
Posted inResearch Spotlights

Probing the Origin of a New Celestial Phenomenon

by Terri Cook 15 March 2019

The first statistical study of STEVE events suggests that the appearance of these narrow ribbons of light is closely correlated with violent disturbances in Earth’s magnetosphere.

Posted inEditors' Highlights

Can Moderate Space Weather Have Major Impacts?

by Michael A. Hapgood 22 February 2019

Pipeline corrosion is an example of why we need better awareness of how long-term exposure to moderate space weather may have significant economic impact by slowly degrading vulnerable systems.

Posted inEditors' Highlights

Jupiter’s Stressed Out Magnetosphere Causes Aurora and Heating

by M. Liemohn 2 January 2019

Force imbalance between Jupiter’s ionosphere and magnetosphere leads to wave generation to release this stress, but the waves also accelerate particles, causing aurora and heating.

Posted inResearch Spotlights

Mysterious Aurora Borealis Feature Explained for the First Time

by E. Underwood 30 May 20187 September 2018

High-speed particles cause indentations in the magnetopause to form “throat auroras.”

Researchers look at Hubble images to spot secondary arcs of Jupiter’s aurora.
Posted inResearch Spotlights

Hubble Reveals Less Studied Regions of Jupiter’s Auroras

by S. Witman 25 July 201725 July 2017

With a dose of fiery plasma, the secondary arcs of Jupiter’s aurora shine bright.

New research suggests Jupiter’s aurora are produced by processes unlike those on Earth
Posted inResearch Spotlights

Mysterious Particle Beams Found over Jupiter’s Poles

by Mark Zastrow 19 June 2017

The unexpected character of the beams, revealed by NASA’s Juno spacecraft, suggests that the processes that produce Jupiter’s auroras are unlike those on Earth.

Auroral physicist Dave Evans relaxes in his garden in Boulder, Colo
Posted inNews

David S. Evans (1936–2016)

by T. E. Moore and T. Fuller-Rowell 25 May 2017

Evans, a pioneer of auroral physics, changed the way scientists thought about the aurora and magnetic fields and guided a new generation of researchers.

Posted inResearch Spotlights

Magnetic Field Pulsations and Aurora Tightly Linked

by Mark Zastrow 12 February 201612 February 2016

Mysterious plasma waves from space are generating displays of aurora near Earth's poles.

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