Aqueous pyrite oxidation by dissolved oxygen and by ferric iron

Arbitrary threshold widths for monotone symmetric properties

Arc Statistics with a sample of the Most X-Ray Luminous Galaxy Clusters

Archimedes' principle for Brownian liquid

Archimedes, Gauss, and Stein

Arctic circles, domino tilings and square Young tableaux

Are attractors relevant to turbulence?

Are CO Observations of Interstellar Clouds Tracing the H2?

Are Comets 42P/Neujmin 3 and 53P/Van Biesbroeck Parts of one Comet?

Are fractional Brownian motions predictable?

Are geomagnetic field reversals controlled by turbulence within the Earth's core?

Are high-redshift quasars hidden by dusty galaxies?

Are symbiotic stars the precursors of type IA supernovae?

Are the cometary outbursts caused by impacts with interplanetary vagabonds probable?

Are the γ-ray from the Vela pulsar polarized?

Are those flares periodic?

Are we alone after all

Arecibo and Goldstone Radar Imaging of Near-Earth and Main-Belt Asteroids in 2005

Arm exponents in high dimensional percolation

Arnold's structural theorem for the thick disk model describes the structure of planetary systems and circumstellar disks