... past few decades: the famous 1974 Arecibo message; the Pioneer and Voyager interstellar spacecraft that carry information about Earth for the benefit of whatever ETI may encounter the spacecraft in the future; and the Invitation to ETI Web site where Dr ...
... Powerful ground-based radar is the most suitable instrument for these purposes because of impossibility for spacecraft to fly round all multitudes of MBAs. ...
... The Braastad Message uses the ‘mathematical language’ of the ISR to describe Team Encounter’s premiere spacecraft, Humanity’s First Starship , including its dimensions, payload, trajectory, and projected time of launch. ...
... It can not say anything about defects of this perfect system, except of very hard occupancy of 70-m dish by spacecraft’s operations, and so, very scant time provided for radar experiments. ...
... Performance of shaped beam quadrifilar antennas on the METOP spacecraft / Cahill R., Cartmell I., Van Dooren G., Clibbon K., Sillence С. // IEE Proc. Microwaves, Antennas and Propag. ...