Auroras make noises that sound like ice cracking. Now you can hear it yourself. by AndyTomaswick
Credit – Aalto University YouTube Channel / Unto Laine
Those electrical discharges aren’t necessarily visible; however, the pops still happen despite the lack of a visible cause. What’s more – they happen a lot more often than there are visible causes. To Dr. Laine, at least, this means that auroras are much more common than typically thought, even if they aren’t necessarily visible.
Tracking auroras themselves requires geomagnetic readings, and plenty of those matched up with the timing of the auroral sounds Dr. Laine collected in his latest recording near the village of Fiskars, the original home of the multinational company of the same name. Using geomagnetic data alone, Dr. Laine could estimate when the sounds would happen with 90% accuracy. The 60 best sounds he recorded were all directly tied to geomagnetic events.
But the most surprising finding, at least according to Dr. Laine, is just how often these sounds occur. The sounds that he describes as akin to “ice cracking or someone walking a dog” are caused by the same geomagnetic forces that create the famous lights and are much more common than the lights themselves. So if you’re ever inspired to see this world-famous natural phenomenon, it might be a good idea to bring along a recording device.
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Why A Classic Song From 1985 Is About To Become An Even Bigger HitKate Bush's 'Running Up That Hill' soared up the charts thanks to a key role on the hit Netflix show 'Stranger Things.'
Read more »
Interstellar Travel Could Be Possible Even Without Spaceships, Scientist SaysIn about 5 billion years, the Sun will leave the main sequence and become a red giant. It'll expand and transform into a glowering, malevolent ball and consume and destroy Mercury, Venus, Earth, and probably Mars.
Read more »
Uvalde, Texas, residents trying to support each other, even as all grieveSome in Uvalde, Texas, say now the community's closeness is both its blessing and its curse: Residents can lean on each other to grieve. But every single one of them is grieving.
Read more »
Coronavirus can be contagious during a Paxlovid rebound, researchers warn, even if people don't have symptomsPeople experiencing a Covid-19 rebound after treatment with the antiviral drug Paxlovid can be contagious, and researchers are warning that they may not know it because they might not have any symptoms when they are.
Read more »
Drinking coffee daily -- even with sugar -- is linked to a lower risk of deathDrinking a few cups of coffee a day -- even with sugar -- is linked to a lower risk of death, new research shows.
Read more »
Civilizations Don't Even Need Space Ships to Migrate From Star System to Star SystemCould a threatened civilization escape an existential threat by hitchiking on a rogue planet? A new study says it might be possible.
Read more »