25 years ago today, one of the most tragic events in the history of the United States space program occurred. The Space Shuttle Challenger, on what would have been its 10th mission to space, broke apart 73 seconds after takeoff, ending the mission and the lives of those aboard. But what exactly caused the space shuttle to explode?
Spacecraft
The First Manned Spaceship: Vostok 1
While some may think that the first manned spaceship was built by the United States, it was actually built by the Soviet Union. It was called the Vostok 1 and boy was it an interesting piece of technology surrounded by some major controversy.