Date of issue: 4 May 2007.
Diameter – 31 mm, thickness – 2 mm, weight – 11,37 gram
Images and inscriptions of observe and back sides of coins are relief.
The lateral surface (drove) is grooved with 10 sectors of corrugation.
Averse: the composition, which symbolizes the unity of a man and the universe, bonds of past and present; the face value of the coin «50 TENGE»; two legends «REPUBLIC OF KAZAKHSTAN» in Kazakh and English.
Reverse: the image of the first space satellite of the Earth; “1957-2007” means the year of the launch of the satellite to the orbit of the Earth and the year of coinage in the lower part; the name of the coin is indicated in Kazakh and English “THE FIRST SPACE SATELLITE OF THE EARTH”.
Mintage: 50 000.