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 ...

Space & Earth - Astronomy

May 05, 2012 5 / 5 (12) 4 |

(PhysOrg.com) -- Japanese geologist Tetsuji Onoue, of Kagoshima University, after studying chert rock (a form of microcrystalline quartz) he’d taken from Ajiro Island off the southern coast of Honshu, ...

Space & Earth - Earth Sciences

May 17, 2011 4.8 / 5 (6) 1 |