50 GeV gamma-ray blazar studies using the CELESTE experiment
50 Jahre Kältetechnik 1879 1929: Geschichte der Gesellschaft für Linde's Eismaschinen A-G, Wiesbaden
50 MHz radar observations of mid-latitude E-region irregularities at Camp Santiago, Puerto Rico
50 Quadratmeter höchste Präzision. Zerodur-Glaskeramik als Spiegelträger für das VLT.
50 Virginia CCD Spectrum
50 Years of Gauge Theory. Mathematical Aspects
50 Years of Neutrino Physics
50 years of space science at Leicester
50 years of the Borok Geophysical Observatory, Schmidt Institute of Physics of the Earth, Russian Academy of Sciences
50 years of the Lovell Telescope
50 Years of the Meteoritical Bulletin
50-100 NM Carbon Balls in Allende Meteorite Morphologically Identical to Nannobacterial Colonies on Earth
50-mm MEMS deformable mirror
500-km 1-GBPS airborne laser link
500-th solution of 2D Ising model
5000 Flying Rocks - Asteroid Positions
5008 Miyazawakenji CCD Spectrum
500th Council Meeting Cake
5010 Amenemhet CCD Spectrum
5013 1964VT1 CCD Spectrum