Complete the text with the words formed from the words in brackets.
Дополнить текст словами из скобок.
Many people think that it is 1 ______ (point) to send people into space. It is dangerous and also very 2 _____ (expense), and some would say that it’s not even 3 _____ (science) useful. The costs of the 4 _____ (maintain) of the space shuttles which are used for manned 5 _____ (fly), and of the International Space Station, are simply 6 _____ (astronomy). NASA – the National Aeronautics and Space Administration – consequently faces huge financial 7 _____ (difficult). Perhaps they should forget the manned programme and look for more 8 _____ (effect) missions