Discovery of a large and bright bow shock nebula associated with low mass X-ray binary SAX J1712.6-3739

Discovery of a magnetic neutron star in X-ray transient IGR J01583+6713

Discovery of a Meter-Wavelength Radio Transient in the SWIRE Deep Field: 1046+59

Discovery of a new Soft Gamma Repeater, SGR J1833-0832

Discovery of a new Soft Gamma Repeater: SGR J0418+5729

Discovery of a New Torque Reversal of the Accreting X-ray Pulsar 4U 1626-67 by Fermi/GBM

Discovery of a Peculiar Dip from GX 301-2

Discovery of a QPO in the X-ray pulsar 1A 1118-615: correlated spectral and aperiodic variability

Discovery of a Second Nova Eruption of V2487 Ophiuchi

Discovery of a Second Transient Low-Mass X-ray Binary in the Globular Cluster NGC 6440

Discovery of a short orbital period in the Supergiant Fast X-ray Transient IGR J16479-4514

Discovery of a Significant Magnetic CV Population in the Limiting Window

Discovery of a superluminal Fe K echo at the Galactic Center: The glorious past of Sgr A* preserved by molecular clouds

Discovery of a tight correlation for gamma ray burst afterglows with `canonical' light curves

Discovery of a Young Gamma-ray Pulsar Associated with an Extended TeV Gamma-ray Source

Discovery of an accreting millisecond pulsar in the eclipsing binary system Swift J1749.4-2807

Discovery of an Energetic 38.5 ms Pulsar Powering the Gamma-ray Source IGR J18490-0000/HESS J1849-000

Discovery of an Energetic Pulsar Associated with SNR G76.9+1.0

Discovery of an optical counterpart to the hyperluminous X-ray source in ESO 243-49

Discovery of an Ultrasoft X-ray Transient Source in the 2XMM Catalog: a Tidal Disruption Event Candidate