Science

Question:

Answers:

1. 
   jilllessa Teacher
   High School - 10th Grade

   Auroras are caused by protons and electrons bombarding the atmosphere of a planet.  Because most planets are bombarded with electronic particles, those with a dense enough atmosphere will have auroras.  For an excellent description of the nature and cause of auroras as well as a more in-depth answer to your question, see the link below.

   Sources:

   http://odin.gi.alaska.edu/FAQ/#planets

   Rate answer:

    

   • Flag as inappropriate

   Posted by jilllessa on Friday June 13, 2008 at 6:24 AM
   
   

You can now ask questions directly from Facebook, add the Ask a Teacher App from eNotes!