spacer
 
Advanced Search
Astrobiology Magazine Facebook  Astrobiology Magazine Twitter
Meteors, Asteroids and Comets
Pluto Cutaway. The large tilt in Pluto's rotational axis (120 degrees) creates very large seasonal variations. As surface ices melt in the migrating sunlight, their gases are transported and redeposited in dark, cold surface regions as frost. At the same time, in other locations on the planet or as Pluto's seasons change, some of the gases of the atmosphere freeze on the surface, causing a slow but continuous exchange of materials between the surface and the atmosphere. This constantly refreshes the surface, perhaps covering much of the planet's topography with freshly deposited ices on time scales of thousands of years.
Credit: NASA/JHU/APL.
01/14/09

 



Viewed:  1051 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