All-sky camera captures swirling majesty of a purple aurora over Earth

This mixture of green and purple auroral lights was captured by an all-sky camera in Sweden on Oct. 12, 2021.

Video screenshot by Amanda Kooser/CNET

Earlier this month, the sun spit out what the European Space Agency described as a “violent mass of fast-moving plasma” known as a coronal mass ejection. These CMEs can disrupt communications and GPS systems but can also deliver outstanding auroras on Earth. ESA has released an eye-catching video of one of the glowing lightshows that followed the Oct. 9 coronal mass ejection.

“What I love about this video is the chance to see this beautiful, purple aurora, more clearly visible during intense geomagnetic storms,” space weather applications scientist Hannah Laurens said in an ESA statement last week.

The video is from the fish-eye point of view of an all-sky camera in Kiruna, Sweden, that faces up to see the sky from horizon to horizon. The camera, part of ESA’s Space Weather Service Network, observed the aurora on Oct. 12. The video feels like watching a magic crystal ball as the aurora swishes from green to purple. 

The green colors are “created when energetic particles in the solar wind collide with oxygen in Earth’s atmosphere,” ESA said. The rarer purple colors come from the charged particles interacting with nitrogen. It’s a fantastical lab experiment in the sky — with real-life implications.

“While humans on Earth are protected by Earth’s magnetic field,” ESA said, “space weather can have an extreme and disruptive impact on satellites in orbit and infrastructure on Earth, and ultimately our society.” 

Laurens noted that studying the swirling movement of the aurora helps scientists monitor space weather conditions.   

The all-sky camera’s video is for serious scientific study, but it’s also worth a few moments of marveling at the connections between the moods of the sun and life on this planet.

Source link


InterRent Announces June 2021 Distributions


iPhone Activation Lock Removal For All iOS Users

What’s an iPhone Activation Lock Removal?If you have an iPhone and are stuck in an endless loop of iCloud restrictions, you can bypass it by...

Wall St Week Ahead-Fed shift causes rally in value stocks to wobble

Breadcrumb Trail Links PMN Business Author of the article: Article content NEW YORK...

Food group Granarolo eyes M&A in U.S. after buying British unit

Article content MILAN — Italian dairy group Granarolo aims to grow through acquisitions and is looking at opportunities in the United States, where...

Online payment company Payoneer goes public after SPAC merger

Article content Payments provider Payoneer went public on the Nasdaq stock exchange on Monday after it closed a merger with a blank-check firm...