Photo of STEVE (IMAGE) NASA/Goddard Space Flight Center Caption STEVE (Strong Thermal Emission Velocity Enhancement) was seen on March 10, 2018, just after midnight local time over Crossfield, Alberta, Canada. The STEVE was visible for about 30 minutes. Credit Courtesy Chris Ratzlaff Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.