Mercury/Helium

One of first elements detected in Mercury's atmosphere by Mariner 10. Thought to originate from solar winds. Some exit via channels in the magnetic fields.

Magnesium Detected in Mercury's Atmosphere (May 2009)

 * See Mercury/Atmosphere, Mercury/Tail, Mercury/Magnesium, Mercury/Calcium, Mercury/Sodium, Mercury/Iron, Mercury/Aluminum, Mercury/Silicon


 * http://www.denverpost.com/headlines/ci_12267618
 * http://www.colorado.edu/news/r/3cc168fd0a6b2a95605dee1f60b4e03b.html