Stony Meteorite Orbits

Magnetic Susceptibility of Stony Meteorites from the National Meteorite

Introduction: There has been recent interest in using magnetic susceptiblity to characterize and classify meteorites [1,2]. Measurements of magnetic susceptibility represent a fast, non-destructive and systematic way to categorize the rapidly expanding inventory of stony meteorites being discovered on Earth. Previous studies [1,2] have demonstrated that although magnetic susceptibility varies o...

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N=2 string amplitudes, when required to have the Lorentz covariance of the equivalent N=4 string, describe a self-dual form of N=4 super Yang-Mills in 2+2 dimensions. Spin-independent couplings and the ghost nature of SO(2,2) spacetime make it a topological-like theory with vanishing loop corrections.

Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars

Spacecraft exploring Mars such as the Mars Exploration Rovers Spirit and Opportunity, as well as the Mars Science Laboratory or Curiosity rover, have accumulated evidence for wet and habitable conditions on early Mars more than 3 billion years ago. Current conditions, by contrast, are cold, extremely arid and seemingly inhospitable. To evaluate exactly how dry today's environment is, it is impo...

Mini-tes Measurements of Santa Catarina-type, Stony-iron Meteorite Candidates by the Opportunity Rover

Introduction: After nearly 40 years of close-proximity reconnaissance, the precise role of water in the hydrogeologic and potential habitability history of Mars still remains one of the most enigmatic puzzles facing planetary science. Significant progress has been made, however, and general scientific opinion is now inclined to regard the earlier Noachian period of Mars’ history as possessing t...

On a Stony Meteorite from Anthony, Harper County, Kansas, and a Recently Found Meteoric Iron from Mejillones, Chile.