spacer
 
Advanced Search
Astrobiology Magazine Facebook  Astrobiology Magazine Twitter
Celestial Album
In the outer regions of the solar system — out beyond an invisible boundary called the frost line
08/24/13

 

In the outer regions of the solar system — out beyond an invisible boundary called the "frost line" — it was cold enough for lightweight volatiles such as water and ammonia to condense onto the nascent giant planets. Thus, the outer planets formed from not only rocks and metals, but collected volatiles to become gassy giants. In the relatively warm inner region, the smaller planets Mercury, Venus, Earth, and Mars formed mainly from rocks and metals. Credit: Lunar and Planetary Institute



Viewed:  29 times

 

 

 

About Us
Contact Us
Links
Sitemap
Podcast Rss Feed
Daily News Story RSS Feed
Latest News Story RSS Feed
Learn more about RSS
Chief Editor & Executive Producer: Helen Matsos
Copyright © 2014, Astrobio.net