CLUES > RETURN NECESSARY DISTANCE TRY SHORT TRAVEL FLY HOUR RESULT

In future astronauts will required to descend from spaceship while it is in space and to to it. The ability do this will be in future flights to planets. Scientists are now to discover if this possible. The spaceship Astra, left the earth a time ago, will be three hundred miles into . At a certain point, Astra will stop for short time and an will attempt to leave stationary spaceship and then to it. We shall know whether the experiment been successful until we received a radio message. first message is expected arrive at 7 o'clock evening. By that time, Astra will have been through space for seventeen and will have circled earth a great many . When the first radio have been received, the of the trip will announced immediately.

162 / 32 / 9
PASS = 17
[ HARD ]

(*) This is an old text, but it's useful anyway...