Is lightning caused by ice particles?

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SUMMARY

Lightning is primarily caused by ice particles colliding in the atmosphere, a conclusion supported by meteorological research. This phenomenon is well-documented on Earth, but questions arise regarding lightning on Venus, where ice is absent. The discussion also touches on the cosmic ray theory of lightning formation, which lacks experimental validation in laboratory settings. Participants speculate on whether other crystallizing substances, such as ammonia or sulfur, could similarly generate lightning.

PREREQUISITES
  • Understanding of atmospheric physics
  • Familiarity with meteorological principles
  • Knowledge of crystallization processes
  • Basic concepts of cosmic rays and their effects
NEXT STEPS
  • Research the role of ice particles in lightning formation
  • Explore the atmospheric conditions on Venus and their impact on lightning
  • Investigate the cosmic ray theory of lightning and any experimental studies
  • Examine the properties of other crystallizing substances that may influence electrical discharge
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Atmospheric scientists, meteorologists, and anyone interested in the physical processes behind lightning formation and its variations across different planetary environments.

Mk
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http://www.abc.net.au/science/news/stories/s1443052.htm
One of many articles on the proof that lightning is caused by ice flying around in the atmosphere. Apparently meteorologists are pretty certain about this. What about on Venus? There's a lot of lightning there, but certainly no ice.

What do all of you think on of the cosmic ray theory of lightning formation?
 
Science news on Phys.org
Didn't have time to read the link, but I've heard the same assertion many times. Still, no matter how I search, I can't seem to find a report of a spark being generated this way in the lab. Has it been done?

Regarding Venus; I suppose that, if ice crystalls can generate lightning, crystals of amonia or sulfur or anything else that crystalizes when it freezes would do the same, would it not?
 

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