SOHO image: Here comes the sun
Monday, July 13, 2015 - 06:00
in Astronomy & Space
The Solar and Heliospheric Observatory (SOHO) has been watching the Sun for almost 20 years. In that time it has seen solar activity ramp up and die down repeatedly. Its Extreme ultraviolet Imaging Telescope has taken images of the resulting waxing and waning of the Sun's corona – its atmosphere – that are impossible to record from the ground.