Solar Flares HOW DO THEY AFFECT US?. What is a solar flare?  A magnetic storm on the sun  A large energy release  A glow, then…  A huge ejection into.

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Presentation transcript:

Solar Flares HOW DO THEY AFFECT US?

What is a solar flare?  A magnetic storm on the sun  A large energy release  A glow, then…  A huge ejection into space  Electrons, atoms, and ions  X-rays

More about flares  Happen around sunspots  Sunspots: Dark, cool spots on the sun  Particle cloud reach earth in 2 days  Occur in cycles

How do flares affect earth?  Disrupt radio signals  Disturb radar stations  Can affect “cyberspace”  Radiation storm can endanger astronauts  Northern lights visible in more places

Ejection phase can disrupt  GPS systems  Airline flights  Satellite communications  Cell phones  Fuel pumps  Computerized cars controls

Satellite communications  Financial transactions  Electrical grid power surges  Blow out transformers  Equipment is hard to replace  Safety of ships at sea

The 1859 solar flare  Called the “Carrington Event”  Telegraphs stopped working  Northern lights visible in Italy, Cuba, and Hawai‘i

Can we watch them from earth?  Not visible with home telescopes  Or even with these telescopes  Only high-powered professional telescopes

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