The ASU Center for Meteorite Studies is pleased to announce that Brandon Johnson, a graduate student at Purdue University, is the recipient of the 2012 Nininger Meteorite Award! Brandon's paper, “Impact spherules as a record of an ancient heavy bombardment of Earth”, demonstrates a method to estimate the size and velocity of objects impacting Earth […]
New Evidence Suggests 1908 Tunguska Explosion Caused by Meteorite, Not Comet!
The 1908 Tunguska air burst over a forested region of Russia released energy equivalent to up to 5 megatons of TNT, and is one of the largest such events in recorded history. Long attributed to the impact of an exraterrestrial body, the lack of large-scale meteorite material at the Tunguska site has made it difficult […]
Infrasound Waves from Chelyabinsk Meteorite Circled the World – Twice!
A new study in the journal Geophysical Research Letters has shown that infrasound waves generated by the dramatic entrance into Earth's atmosphere by the Chelyabinsk meteorite circled the planet twice, and persisted for almost three days. The study also gives a preliminary estimate of the energy released by the meteorite's desintegration, equivalent to 460 kilotons […]
Athens
Athens is an ordinary (LL6) chondrite that fell the morning of July 11, 1933, in Limestone County, Alabama. Only one stone, weighing approximately 265 g., was recovered. According to C.C. Wylie and Stuart H. Perry, who described the Athens fall in great detail in volume 41 of Popular Astronomy (1933), a farmer and his son […]
CMS Welcomes NASA Graduate Fellow!
We are pleased to announce that Teresa Ashcraft has joined the Center for Meteorite Studies as a NASA Graduate Fellow! Teresa will be working on CMS Education and Public Outreach efforts, and is currently a Ph. D. Candidate in the School of Earth and Space Exploration. […]
