on april 12th 1961 russian cosmonout yuri gargarin became the first humon to go into space .eight years later o n july 20th 1969 people all over the world turned on their televisions to see american astronout neil armstrong become the first human to walk on the surface of the moon. since then there have been many exciting developments in spave exploration.on december 15th 1970 venera 7 became the first spaceccraft to land on another planet.the russion space cr aft travelled to venus and sent information about the planet back to earth in 1997 the american spacecraft pathfinder landed on mars. asmall robot cam out of the spacecraft