Super-hot, super-fast solar tornadoes
Date: 24 April 1998
Satellite: SOHO
Depicts: Solar Tornado
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A gyrating high-speed storm wider than Africa projects like a chimney
from the south pole of the Sun, in the lower picture. It is one of a
dozen such tornadoes found by the SOHO solar spacecraft of ESA and NASA.
The scanning spectrometer CDS, built and operated by a British-led team,
made the discovery. It has imaged this previously unknown type of
feature of the Sun's weather in gas at 250,000 degrees C. Measurements
reveal flows of around 150 kilometres per second, or 500,000 kilometres
per hour. For comparison, tornadoes on the Earth blow at 400-500
kilometres per hour.
Last Update: 1 September 2019