View Single Post
 
Old 05-05-2012, 11:30 AM
MonsieurM's Avatar
MonsieurM MonsieurM is offline
Platinum Member
 
Join Date: Feb 2011
Posts: 10,078
Send a message via MSN to MonsieurM
Astronomers discover a rare stellar disk of quartz dust

Quote:
A research team of Japanese astronomers led by Dr. Hideaki Fujiwara (Subaru Telescope) has discovered a main-sequence star that is surrounded by a rare disk of quartz dust. Collisions of planetesimals, building blocks for planets, may have produced the dusty quartz ring during planet formation around the star. Based on observations with the AKARI and Spitzer infrared space telescopes, this recently discovered, intriguing feature of a stellar system may open new doors for research on the mineralogical nature of extrasolar planetary systems




Research suggests more silicon in Earth's lower mantle than thought

Quote:
For many years geophysicists have argued over the perplexing mystery regarding the amount of silicon in the Earth's mantle that is thought to have arrived there via impacts with asteroids.
__________________
Signs and symbols rule the world, not words nor laws. -Confucius.

Last edited by MonsieurM; 05-05-2012 at 11:37 AM.
Reply With Quote