Discovery of an extremely bright submillimeter galaxy at z=3.93

Discovery of an unusual new radio source in the star-forming galaxy M82: Faint supernova, supermassive blackhole, or an extra-galactic microquasar?

Discovery of Balmer Broad Absorption Lines in the Quasar LBQS 1206+1052

Discovery of Candidate H$_2$O Disk Masers in AGN and Estimations of Centripetal Accelerations

Discovery of CIV Emission Filaments in M87

Discovery Of Cold, Pristine Gas Possibly Accreting Onto An Overdensity Of Star-Forming Galaxies At Redshift z ~ 1.6

Discovery of Compton-thick quasars in the Sloan Digital Sky Survey

Discovery of diffuse emission in the galaxy cluster A1689

Discovery of Energy Dependent X-ray Microlensing in Q2237+0305

Discovery of Four kpc-Scale Binary AGNs

Discovery of Gas Bulk Motion in the Galaxy Cluster Abell 2256 with Suzaku

Discovery of Hydrogen Fluoride in the Cloverleaf Quasar at z = 2.56

Discovery of Radio Afterglow from the Most Distant Cosmic Explosion

Discovery of strong Iron Kα emitting Compton thick quasars at z=2.5 and 2.9

Discovery of strongly blue shifted mid-infrared [NeIII] and [NeV] emission in ULIRGs

Discovery of the correspondence between intra-cluster radio emission and a high pressure region detected through the Sunyaev-Zel'dovich effect

Discovery of the disturbed radio morphology in the interacting binary quasar FIRST J164311.3+315618

Discovery of the first giant double radio relic in a galaxy cluster found in the PLANCK Sunyaev-Zel'dovich cluster survey: PLCK G287.0+32.9

Discovery of the largest known lensed images formed by a critically convergent lensing cluster

Discovery of the nearby long, soft GRB 100316D with an associated supernova