
© Dai Zhenhua/For China DailyPeople look for chondrites (inset) in a sugarcane field in Manlun village in Yunnan province on Monday.
A recent test reveals that the chondrites - stony nonmetallic meteorites - that hit Xishuangbanna, Southwest China's Yunnan province, about two weeks ago, are 4.5 billion years old - almost the same age as of the solar system.
The test was conducted by Xu Weibiao, chief scientist of the Purple Mountain Observatory under Chinese Academy of Sciences, after he received through special delivery one of the over 200 meteorites found in Xishuangbanna on June 11.
Under electron microscope, spherical masses can be seen randomly scattered on the surface of the meteorite test sample.
These are chondrule, which cannot be found in rocks on the earth but are unique to the meteorite. The formation of it can be traced back to 4.5 billion years ago when the sun was just a large nebula - a mass of gas and dust, Xu said.
Comment: Activity in our skies is certainly heating up - below are the events documented in just the last two weeks or so: