Put these in order by date:

Question

First humans in space
First reusable space shuttle launch
First humans on the moon
First lander on Mars
Hubble Space telescope launch

Answer 1

1. First humans in space - April 12, 1961 (Yuri Gagarin)
2. First humans on the moon - July 20, 1969 (Apollo 11)
3. Hubble Space telescope launch - April 24, 1990
4. First lander on Mars - July 20, 1976 (Viking 1)
5. First reusable space shuttle launch - April 12, 1981 (Columbia)