... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

June 28, 2010 Wider Bandwidths and a New 12m Antenna will keep . the Arecibo Radiotelescope at the cutting edge of . ... 12m reference antenna Photos by: Tony Acevedo . V ery Long Baseline Interferometry (VLBI) is the technique used to combine signals from radio telescopes separated by distances that can span different continents, or even reach between the Earth and an orbiting . ... Arecibo 305-m telescope is an active participant in both of these forms of VLBI. ...

The VIRGO project is a physics experiment; its aim is the detection of gravitational waves. ... It has not yet been possible to detect directly the gravitational waves: it remains one of the major challenges of experimental physics. ... Interferometric antennas for gravitational waves Gravitational waves distort space-time: along two perpendicular directions, the distances between fixed points will increase (resp. decrease), at the arrival of a gravitational wave. ... Publications from our Group . ...

... 1971), Colla, et al. (1972), and Fanti et al. (1974). 2 name B2 name of source (char8, ex: '0512+24A') 1 cat Part of B2 catalog which contained the source (char4, example : 'B2.1') 3 dec_1950 radians Declination of source in radians (B1950) (real, example : 0.474555) 4 ra_1950 radians Right ascension of source in radians (B1950) (real, example : 5.125028) 5 dec_1950_deg degrees Declination of source in degrees (B1950) (real, ... Example (name) (char8): '0512+24A' . ...