1.  Rearrange  the  following  according  to  the  timeline. Match A with what  happened  first  and D
with what happened last.
The first automatically controlled spaceship reentered the atmosphere.
The United States launched Explorer I.
The Soviet Union launched its first artificial satellite.
Kennedy’s goal was finally achieved.
(CBAD)
2.  Which of the following were achieved by Gemini? (Click on 2 answers)
A    The first manned linkup of two spacecraft.
B    The first walk on the moon.
C    The first eight-day mission in space.
D    The first orbit around the Earth.
(A,C)