Search HowStuffWorks and the web:
 

Atmospheric sciences help us understand and predict the weather. Learn about topics such as the seasons, why it snows, and how rainbows are formed.

How Auroras Work

Forward this article to five of your friends.

Your Name:

Your E-mail:

Friend #1 E-mail:

Friend #2 E-mail:

Friend #3 E-mail:

Friend #4 E-mail:

Friend #5 E-mail:

Your Message:



Please enter the characters you see above:
This helps HowStuffWorks prevent automated emails.

ADVERTISEMENT
Browse Browse Videos Browse Videos
 
  •  
    TOP SELLING
    TELESCOPES
Optical Design: Newtonians, Optical Diameter: 130 mm, Focal Length: 650 mm, Max Useful Magnification: 65 x, Mount Type: Equatoria...
$233 - $233

Optical Design: Refractor, Optical Diameter: 80 mm, Finderscope type: Red-Dot, Focal Length: 720 mm
$180 - $200

Optical Design: Refractor, Optical Diameter: 60 mm, Finderscope type: Optical, Focal Length: 700 mm, Mount Type: Altazimuth
$50 - $50