Antennas on the background of a beautiful starry skyAntennas on the background of a beautiful starry sky
A high - altitude plateau 5000 meters above sea levelA high - altitude plateau 5000 meters above sea level
Eavesdropping on outer space- search ????other civilizations have been going on for 50 years, but the results are scantyEavesdropping on outer space- search ????other civilizations have been going on for 50 years, but the results are scanty
Chrome pipes of a harley davidson motorcycle close-upChrome pipes of a Harley Davidson motorcycle close-up
Plateau at an altitude of 5000m with an observatoryPlateau at an altitude of 5000m with an observatory