A peculiar strip of glowing light spotted in the sky over Canada has left scientists scratching their heads.
Stretching from east to west, the peculiarly named 'Steve' was first picked up by members of Alberta Aurora Chasers, a Facebook group frequented by people looking to share information about the best places to photograph the Northern Lights.
Reaching temperatures of up to 10,800 degrees Fahrenheit ( the same as the Earth's core ), this peculiar phenomenon is 16 miles wide and thousands of miles long.
Now following an extensive new study in to the nature and origins of 'Steve', researchers have come to the conclusion that the phenomenon is 'completely unknown' to science.
"Our main conclusion is that 'Steve' is not an aurora," said physicist Bea Gallardo-Lacourt from the University of Calgary. "So right now, we know very little about it. And that's the cool thing."
Until more is known about the phenomenon, scientists have decided to keep the name 'Steve' but have changed it to the acronym 'Strong Thermal Emission Velocity Enhancement'.
STEVE is a purple ribbon of light that amateur astronomers in Canada have been photographing for decades, belatedly catching the attention of the scientific community in 2016. It doesn't look exactly like an aurora, but it often appears alongside auroras during geomagnetic storms. Is it an aurora -- or not? That's what Gallardo-Lacourt's team wanted to find out. Auroras appear when energetic particles from space rain down on Earth's atmosphere during geomagnetic storms. If STEVE is an aurora, they reasoned, it should form in much the same way. On March 28, 2008, STEVE appeared over eastern Can... [More]
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