First high-resolution stratigraphic column of the Martian north polar layered deposits

First Images from VLT Science Verification Programme

First Images of Asteroid 243 Ida

First Interferometric Deep millimetre Survey

First known EL5 chondrite - Evidence for dual genetic sequence for enstatite chondrites

First Light Curve from Antarctica PAIX Monitoring of the Blazhko Stars

First light of SWAP on-board PROBA2

First Light of the Supernova Integral Field Spectrograph

First Light: Physics of Early Star Formation from the Local Universe

First Low-Iron Materials on Mars and Possibility of a Major Montmorillonite Component

First measurements and modeling of Δ17O in atmospheric nitrate

First Measurements of the 3D Morphology of a Sample of Galaxy Clusters

First measurements of the latitudinal atmospheric O2 and CO2 distributions across the western Pacific

First Mineralogical Maps of 4 Vesta

First Natural Occurrence of Coesite

First North American Antenna Enables Next Phase in Joint ALMA Observatory

First observation of beryllium-7 solar neutrinos with KamLAND

First observational estimates of global clear sky shortwave aerosol direct radiative effect over land

First observations of mesospheric dynamics with a partial reflection radar in Hawaii (22 deg N, 160 deg W)

First observations of surface ozone concentration from the summit region of Mount Everest