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Solar Storms
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Solar Storms
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  what does LASCO see?
  how does LASCO see the corona?
  blasts from the Sun
  are CMEs dangerous?
  what causes CMEs
  what has LASCO taught us?
  LASCO - the great comet hunter

solar storms and comets

Mark Hi, we are Mark and Alexi and we study solar storms. By watching the Sun's corona with instruments on board the SOHO spacecraft, we find that huge explosions shoot out from the Sun all the time. Let us show you some of the things we find. Alexi

Total solar eclipses let us see the Sun's corona, which we can't normally see because of the bright glare from the Sun. But total solar eclipses only happen about once a year and then they only last for a few minutes. That doesn't give us much time to study the corona. A better way is to use special telescopes in space.

Here's a picture taken by SOHO's LASCO telescope. So that we can see the Sun's corona clearly, the Sun itself is hidden behind a black disk which is inside the LASCO instrument. I’ve drawn in a white circle to show where and how big the actual Sun is.


Suns corona from LASCO

  Never look at the Sun directly
You can see more movies in our Gallery   [Movie file 1mb or more - High quality]   How many words can you make out of the word CORONAGRAPH?

When we observe the corona in this way we often see hugh explosions like the one in the movie above, or as in the images below.


These are no ordinary explosions, they are Coronal Mass Ejections or CMEs. They blow incredible amounts of material from the Sun’s atmosphere out into space.


Here are some images of a Coronal Mass Ejection






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