The spectacular solar storms that paint the polar skies in beautiful greens and pinks have a darker side Source: https://www.livescience.com/magnetic-storm-originate-close-to-earth.html
Tag: polar
Wow! More evidence for active volcanoes on Venus
We’ve known for some time that Venus has vast lava plains, fields of small lava domes, and large shield volcanoes. But does it still have active volcanoes? A new study involving lava flows on Venus suggests that, yes, it does. Source: https://earthsky.org/space/evidence-active-volcanoes-venus-olivine…
Polar stratospheric clouds over Sweden
Northern Europe had an amazing display of these clouds this week. Source: https://earthsky.org/todays-image/polar-stratospheric-clouds-sweden-dec-2019…
2019 Arctic Report Card: Visual highlights
NOAA’s 14th annual Arctic Report Card recounts the ways that climate change continued to alter the north polar region during 2019. Source: https://earthsky.org/earth/2019-arctic-report-card-visual-highlights-video…
Greenland’s Ice Sheet Melting Seven Times Faster Than In 1990s
An anonymous reader quotes a report from The Guardian: Greenland’s ice sheet is melting much faster than previously thought, threatening hundreds of millions of people with inundation and bringing some of the irreversible impacts of the climate emergency much closer. Ice is being lost from Greenland seven times faster than it was in the 1990s, and the scale and speed of…
Mystery surrounds ‘T-34’ written on polar bear
An investigation is currently underway in an effort to track down who is responsible for painting the animal. Footage of the bear, which has racked up… Source: https://www.unexplained-mysteries.com/news/332654/mystery-surrounds-t-34-written-on-polar-bear…
See the northern lights or aurora borealis: Follow this easy guide
Winter is the best time to see the amazing phenomenon of the polar lights, when solar particles stream into Earth’s atmosphere Source: https://www.newscientist.com/article/mg24432590-500-see-the-northern-lights-or-aurora-borealis-follow-this-easy-guide/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
How Russian Trolls Spread Propaganda Using Uplifting Tweets
Two associate professors of communication at Clemson spent two years studying online propaganda and state-affiliated disinformation campaigns on social media. This week in Rolling Stone they explain how professional trolls share uplifting “Trojan horse” tweets meant to gain hundreds of thousands of followers, and then “use that following to spread messages promoting division, distrust, and doubt.” Professional disinformation isn’t spread by…
Testing time for MetOp Second Generation
MetOp Second Generation (MetOp-SG) is a follow-on system to the successful MetOp satellites, the last of which launched into its 800 km polar orbit in 2018. Source: https://phys.org/news/2019-11-metop.html…
Photometric study sheds more light on the properties of the intermediate polar V1033 Cas
Using the Kourovka Astronomical Observatory, Russian astronomers have conducted an extensive photometric study of the intermediate polar V1033 Cas (also known as IGR J00234+6141). Results of the new research, presented in a paper published November 15 on arXiv.org, provide more details about the properties of this peculiar system. Source: https://phys.org/news/2019-11-photometric-properties-intermediate-polar-v1033.html…