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
Shining stars on a background of green glow in spaceShining stars on a background of green glow in space
Candle light and a card on the table with gold coinsCandle light and a card on the table with gold coins
Doubling star formation in the constellation cygnus Doubling star formation in the constellation Cygnus
The most powerful antenna for communication with other worldsThe most powerful antenna for communication with other worlds