1 / 8
Miguel J. Rodriguez Carrillo / AFP / Profimedia
2 / 8
Astronaut Provided/Nasa / Zuma Press / Profimedia
3 / 8
andout / AFP / Profimedia
4 / 8
Keegan Barber / AFP / Profimedia
5 / 8
AA/ABACA / Abaca Press / Profimedia
6 / 8
NASA / Keegan Barber / Handout / AFP / Profimedia
7 / 8
Brandon Bell / Getty images / Profimedia
8 / 8
Brandon Bell / Getty images / Profimedia