The aurora enthusiasts have named it Steve.It has garnered the attention of researchers at the European Space … “During strong geomagnetic storms, the plasma river that gives rise to STEVE flows at extreme supersonic velocities. Auroras tend to be a mixture of hues caused by energetic particles raining down through the upper atmosphere. Newly-Observed Atmospheric Phenomenon Named "Steve" Miss Cellania • Tuesday, April 25, 2017 at 12:00 AM. Steve is an atmospheric optical phenomenon, which appears as a light ribbon in the sky, discovered in 2017 by aurora watchers. , A study published in March 2018 by Elizabeth A MacDonald and other co-authors in the peer-reviewed journal Science Advances suggested that STEVE accompanies a subauroral ion drift (SAID), a fast-moving stream of extremely hot particles. For other uses, see, "Introducing Steve - a Newly Discovered Astronomical Phenomenon", "New kind of aurora is not an aurora at all", "Aurora photographers find new night sky lights and call them Steve", "Amateur Sky-Watchers Discover Celestial Phenomenon, Name It 'Steve, "New atmospheric phenomenon named STEVE discovered by aurora watchers", "Meet Steve, a sky phenomenon coming into its own", "Meet 'Steve,' a Totally New Kind of Aurora", "Help NASA Study 'Steve,' a Newfound Aurora Type", "NASA Needs Your Help to Find Steve and Here's How", "New science in plain sight: Citizen scientists lead to the discovery of optical structure in the upper atmosphere", "Steve the odd 'aurora' revealed to be two sky shows in one", "Magnetospheric signatures of STEVE: Implication for the magnetospheric energy source and interâhemispheric conjugacy", "Scientists discover what powers celestial phenomenon STEVE", "Aurora Australis with bonus 'picket fence' wows southern lights chasers in Tasmania", "Aurora-chasing citizen scientists help discover a new feature of STEVE", Eric Donovan's presentation at 2017 ESA Earth Explorer Missions Science Meeting, https://en.wikipedia.org/w/index.php?title=Steve_(atmospheric_phenomenon)&oldid=989863502, Creative Commons Attribution-ShareAlike License, This page was last edited on 21 November 2020, at 13:26. Short for Strong Thermal Emission Velocity Enhancement, this strange aurora has puzzled scientists for years.  In August 2018, researchers determined that the phenomenon's skyglow was not associated with particle precipitation (electrons or ions) and, as a result, could be generated in the ionosphere. A New Atmospheric Phenomenon Called Steve Kaushik Patowary Jun 12, 2017 0 comments For the past three years, members of a Facebook group called the Alberta Aurora Chasers , consisting of photographers who exchange tips and images of the famed northern lights, have been capturing images of a gorgeous arc of light across the sky.  However, the first accurate determination of what STEVE is was not made until after members of a Facebook group called Alberta Aurora Chasers named it, attributed it to a proton aurora, and called it a "proton arc". , One of the aurora watchers, photographer Chris Ratzlaff, suggested the name "STEVE" from Over the Hedge, an animated comedy movie from 2006, in which its characters chose that as a benign name for something unknown. According to analysis of satellite data from the European Space Agency's Swarm mission, STEVE is caused by a 25 km (16 mi) wide ribbon of hot plasmaat an altitude of 450 km (280 mi), with a temperature of 3,000 °C (3,270 K; 5,430 °F) and flowing at a speed of 6 km/s (3.7 mi/s) (compared to 1… The phenomenon is not rare, but had not previously been investigated. Aurora photographers find new night sky lights and call them Steve - BBC News Quote: A group of aurora enthusiasts have found a new type of light in the night sky and named it Steve. In a new study, scientists found STEVE’s source region in space and identified two mechanisms that cause it. According to Gallardo-Lacourt, that's "completely unknown." The ‘rain’ strikes atoms, ions, and … The name “Steve” is a nod to the 2006 animated film “Over the Hedge,” in which its characters chose “Steve” as a benign name for something unknown. ", "Our main conclusion is that STEVE is not an aurora," lead study author Bea Gallardo-Lacourt, a space physicist at the University of Calgary in Alberta, Canada, said in a statement. , Robert Lysak, during the fall meeting of the American Geophysical Union in December 2016, suggested "Strong Thermal Emission Velocity Enhancement" as a backronym of STEVE, one that has since been adopted by the team at NASA Goddard Space Flight Center studying the phenomenon. The phenomenon was discovered in 2016 by citizen scientists in western Canada. An atmospheric phenomenon has been discovered by citizen scientists and aurora photographers — and so little is known about it right now that they've named it Steve. "So right now, we know very little about it. Thousands of new, high-quality pictures added every day. Ratzlaff was referring to an atmospheric optical phenomenon that appears as reddish and green light in the sky. To photographers and stargazers in northern climes, Steve has been a familiar night phenomenon for decades. Please deactivate your ad blocker in order to see our subscription offer. MIKE MCRAE. Steve is definitely created in the ionosphere, Nishimura’s team reports, but the purple slither doesn’t appear to be an aurora, which is defined as light emissions caused by energetic electrons. The Alberta Aurora Chasers Facebook group shares pictures its members take of the Northern Lights. NY 10036. The major structures are two bands of upper atmospheric emissions 100 … Stay up to date on the coronavirus outbreak by signing up to our newsletter today. , STEVE often, although not always, is observed above a green, "picket-fence" aurora. Receive news and offers from our other brands? Reblogged this on Tallbloke's Talkshop and commented: Quote: ‘STEVE is a recently identified atmospheric phenomenon caused by supersonic plasma jets flowing at altitudes >100 km.’ Scientists continue to wrestle with its electromagnetic mysteries. Visit our corporate site. Photo: Elfiehall via Wikimedia Commons, CC-BY-SA 4.0 In July of last year, there was a thin trail of purple light that was witnessed streaking across the sky in northern Canada. STEVE marks the first observed visual effect accompanying a SAID. Thank you for signing up to Live Science. For their new study, the team combined images taken by a network of ground-based cameras with data collected from one of the National Oceanic and Atmospheric Administration's Polar-orbiting Operational Environmental Satellites, which were equipped with instruments capable of detecting charged particles descending through Earth's atmosphere. New research into a strange atmospheric effect known as STEVE has failed to associate its enigmatic lights with aurora, pointing to the presence of an entirely new type of atmospheric phenomenon. She also included GPS coordinates from Vimy, Alberta, that helped Donovan link the data to identify the phenomenon. In a recent paper titled "The Mysterious Green Streaks Below Steve," Joshua Semeter of Boston University and a team of researchers examined yet another STEVE phenomenon not reported on before. According to a … [Aurora Images: See Breathtaking Views of the Northern Lights], According to researchers at the University of Calgary in Canada and the University of California, Los Angeles, Steve does not contain the telltale traces of charged particles blasting through Earth's atmosphere that auroras do. 1 / 33.  Although the picket-fence aurora is created through precipitation of electrons, they appear outside the auroral oval and so their formation is different from traditional aurora. A bunch of citizen scientists and aurora photographers in Canada have discovered an atmospheric phenomenon that scientists know little about. This band of hot, surging gas was about 16 miles (25 km) wide. , STEVE may be spotted closer to the equator than the aurora, and as of March 2018 has been observed in the United Kingdom, Canada, Alaska, northern U.S. states, and New Zealand. Steve, therefore, is not an aurora at all, but something entirely different: a mysterious, largely unexplained phenomenon that the researchers have dubbed a "sky glow. , The green emissions seem to be related to eddies in the supersonic flow of charged particles, similar to the eddies seen in a river, which move more slowly than the other water around them. An Upper Atmospheric Discovery Named STEVE Captured unknowingly by scientific instruments for years, a sky phenomenon is finally brought to … 25, 2019 — The celestial phenomenon known as STEVE is likely caused by a combination of heating of charged particles in the atmosphere and energetic electrons like … It has garnered the attention of researchers at the European Space Agency (ESA), NASA, and other institutions.  He correlated the time and location of the phenomenon with Swarm satellite data and one of the Alberta Aurora Chasers' photographers, Song Despins, whose photos are not shown on this page. At about 200 miles (300 km) above Earth, the air inside Steve blazed about 5,500 degrees Fahrenheit (3,000 degrees Celsius) hotter than the air on each side, and moved about 500 times faster. Fellow Aurora Chaser Robert Downie kneels in the foreground while photographer Ryan Sault captures the narrow ribbon of white-purple hues overhead. (Photo courtesy Vanexus Photography) The name “Steve” is a nod to the 2006 animated film “Over the Hedge,” in which its characters chose “Steve” as a benign name for something unknown. Steve (atmospheric phenomenon), a humorously named atmospheric glow; Steve; See also. Last year, they noticed a phenomenon showing up in some pictures: a purplish ribbon in the sky. Please refresh the page and try again. Finally, they are answering some of their questions, and it turns out STEVE … As of March 2018, STEVE has only been spotted in the presence of an aurora. “I don't think this story would have had the legs it has if we'd given it a more scientific name,” confesses Chris Ratzlaff.  Reportage of the heretofore undescribed unusual "aurora" went viral as an example of citizen science on Aurorasaurus. is in need of attention I checked Wikipedia's Steve (atmospheric phenomenon); Occurrence and cause which says: Occurrence and cause. Steve is an atmospheric optical phenomenon which appears as a purple and green light ribbon in the sky, formally discovered in late 2016 by aurora watchers from Alberta, Canada. In late 2016, the backronym "Strong Thermal Emission Velocity Enhancement" was adopted. Meet "Steve," a previously little-known atmospheric phenomenon related to the aurora borealis. Compared to the northern lights — which tend to shimmer in broad bands of green, blue or reddish light depending on their altitude — Steve is remarkably slim, usually appearing as a single ribbon of purplish-white light. Known by the acronym STEVE, it's 280 miles above Earth. According … They found that the mauve arch occurs when charged particles are heated high up in the earth’s atmosphere. The streaks: A new unknown feature of STEVE For a while, STEVE's origins were elusive. Eric Donovan from the University of Calgary in Canada spotted the … Meet Steve, a newly discovered atmospheric phenomenon that’s so strange it still doesn’t have a formal scientific description, hence the placeholder name. The STEVE phenomenon was discovered in 2016 by citizen scientists in western Canada and the aurora-like phenomenon has long been a mystery for scientists.