21.   They expect the Chinese to launch an unmanned spacecraft later this year and put human crews into orbit next year.

22.   The unmanned spacecraft, launched Tuesday, is the fifth and final module to dock with Mir, marking the structural completion of the space station.

23.   It suggested the use of more unmanned spacecraft for carrying out space surveys as part of any international cooperation.

24.   NASA itself has acknowledged that the experiments performed on the shuttle could be conducted on unmanned spacecraft for far less money.