Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 

Extreme Solar Activity May Cause Auroras Over NZ

Extreme Solar Activity

One of the most powerful solar flares in years, a remarkable X17-category explosion, erupted from giant sunspot 486 this morning at approximately 1110 UT and, as a result, a strong solar radiation storm is in progress.

(Click here to learn about the effects of such storms.) The explosion hurled a coronal mass ejection (CME) directly toward Earth. When it left the sun, the cloud was traveling 2125 km/s (almost 5 million mph). This CME could trigger bright auroras when it sweeps past our planet perhaps as early as tonight.


Above: This SOHO coronagraph image captured at 12:18 UT shows the coronal mass ejection of Oct. 28th billowing directly toward Earth. Such clouds are called halo CMEs. The many speckles are solar protons striking the coronagraph's CCD camera. See the complete movie.

Where will the auroras appear?

High-latitude sites such as New Zealand, Scandinavia, Alaska, Canada and US northern border states from Maine to Washington are favored, as usual, but auroras could descend to lower latitudes when the CME described above sweeps past Earth.

Not all CMEs trigger auroras. Several, for instance, have swept past Earth in recent days without causing widespread displays. It all depends on the orientation of tangled magnetic fields within the electrified cloud of gas. The incoming CME is no exception. It might cause auroras, or it might not. We will find out when it arrives.

Info courtesy of Spaceweather.com


© Scoop Media

 
 
 
Business Headlines | Sci-Tech Headlines

 

Forest & Bird: Report Find Council Failures On Effluent

The report exposes significant inconsistencies and gaps in how regional councils are enforcing the rules around dairy effluent management. More>>

ALSO:

Mana In Mahi: Helping Young New Zealanders Into Work

Thousands of young people will be given the chance to gain valuable qualifications and meaningful work under the Mana in Mahi – Strength in Work scheme launched by Prime Minister Jacinda Ardern today. More>>

ALSO:

Reserve Bank: Official Cash Rate Unchanged At 1.75 Percent

The Official Cash Rate (OCR) remains at 1.75 percent. We expect to keep the OCR at this level through 2019 and into 2020, longer than we projected in our May Statement. The direction of our next OCR move could be up or down. ... More>>

Post-Cabinet Press Conference: Trade Stuff

Jacinda Ardern and David Parker's press conference that focused on the government's 'trade for all agenda' plans for widespread consultation on the shape of future trade agreements... More>>

ALSO:

Debt Capital Markets Summit: Grant Robertson On The Economy

"In short, the heart of our Government’s economic plan is to help New Zealand become a more productive, more sustainable, and more inclusive economy in which all New Zealanders can thrive." More>>

ALSO:

Best Environment Practice For Landcorp Farms: New Forest & Bird And Pāmu Collaboration

New Zealand’s largest conservation organisation and largest farming group have agreed to work together to promote best environmental practice in New Zealand’s farming sector. More>>