Home » News & Blogs » Cit­izen Science Dis­cov­ers a New Form of the North­ern Lights
Bookmark and Share
Astro Watch

Cit­izen Science Dis­cov­ers a New Form of the North­ern Lights

4 Feb 2020, 21:37 UTC
Cit­izen Science Dis­cov­ers a New Form of the North­ern Lights
(200 words excerpt, click title or image to see full post)

Working together with space researchers, Finnish amateur photographers have discovered a new auroral form. Named 'dunes' by the hobbyists, the phenomenon is believed to be caused by waves of oxygen atoms glowing due to a stream of particles released from the Sun.In the recently published study, the origins of the dunes were tracked to a wave guide formed within the mesosphere and its boundary, the mesopause. The study also posits that this new auroral form provides researchers with a novel way to investigate conditions in the upper atmosphere.The study was published in the first issue of the high-impact journal AGU Advances.Minna Palmroth, Professor of Computational Space Physics at the University of Helsinki, heads a research group developing the world's most accurate simulation of the near-Earth space and space weather that cause auroral emissions.The sun releases a steady flow of charged particles, known as the solar wind. Reaching the Earth's ionized upper atmosphere, the ionosphere, they create auroral emissions by exciting atmospheric oxygen and nitrogen atoms. The excitation state is released as auroral light.In late 2018, Palmroth published a book entitled 'Revontulibongarin opas' ('A guide for aurora borealis watchers'). The book was born out of Palmroth's cooperation with Northern Lights enthusiasts ...

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day

astronomy_pod