Satellites, Space probes, Projects & Space shuttle research There are many satellites, space probes, and space shuttle. The first succeed satellite was Sputnik 1 (Спутник-1) from Russia at October 4,1957 19:28. It had 4 antenna and it spins earth once in 96 minutes. Sputnik 1 came back in 58 days. It launched to space so Russians was very proud but Americans were shocked so that began Space Race.
Sputnik 1 The second satellites is Explorer 1 from United States. It was launched at February 1, 1958 3:48. They launched Explorer 1 because they are shocked that Russia launched Sputnik 1. California Institute of technology made it and it take 114.9 minutes for spin the Earth one time. Explorer 1 had no signal at May 13, 1958 because it