The phrase space weather is often used to describe the interaction of
the solar wind with the Earth's ionosphere. This latest observation of a
magnetic hurricane spiral plasma structure is somewhat unexpected.

https://physicsworld.com/a/space-hur...er-atmosphere/

--
Regards,
Martin Brown

On 22/03/2021 10:58, Martin Brown wrote:
The phrase space weather is often used to describe the interaction of
the solar wind with the Earth's ionosphere. This latest observation of a
magnetic hurricane spiral plasma structure is somewhat unexpected.

https://physicsworld.com/a/space-hur...er-atmosphere/



I wonder if any connection with sprites, upward lightning discharges,
also unknown till fairly recently.

--
Global sea level rise to 2100 from curve-fitted existing altimetry data
http://diverse.4mg.com/slr.htm

On 22/03/2021 11:52, N_Cook wrote:
On 22/03/2021 10:58, Martin Brown wrote:
The phrase space weather is often used to describe the interaction of
the solar wind with the Earth's ionosphere. This latest observation of a
magnetic hurricane spiral plasma structure is somewhat unexpected.

https://physicsworld.com/a/space-hur...er-atmosphere/

I wonder if any connection with sprites, upward lightning discharges,
also unknown till fairly recently.

Pilots did report seeing them for a long time before low light video
monitoring cameras were routine but were never really believed. Likewise
for transient lunar phenomena which we now know to be meteorite strikes.

Now that somewhere in the world there are typically two or three amateur
astronomers imaging the moon and Jupiter we hardly miss any - and it
turns out they are somewhat more common than anyone thought. eg

https://techcrunch.com/2016/03/30/am...pact-on-video/

https://earthsky.org/astronomy-essen...unar-phenomena

Every few years someone catches a decent bright event. The one in Jan
2019 during a lunar eclipse being widely seen by many amateurs.

--
Regards,
Martin Brown