Ym 1957, daeth yr Undeb Sofietaidd y wlad gyntaf i anfon lloerennau wedi'u gwneud gan ddyn, Sputnik 1, i'r gofod.
© Chloroformzt Official - Est 2009
10 Ffeithiau Diddorol About The history and impact of space exploration

10 Ffeithiau Diddorol About The history and impact of space exploration