The universe is vast and expansive. It is so incredibly large that the human mind is incapable of understanding its true size. It is the most hostile environment imaginable. Extreme temperatures, lack of atmosphere, and intense radiation make space a dangerous place for both human beings and machines to explore. But in spite of this danger, the universe is being explored. From the time of the first telescope to modern day spacecraft and space probes, space exploration has a long and fascinating history.
January 28, 1986 was a day that few of us will ever forget. This is my tribute to the crew of Challenger mission 51-L, including astronaut biographies and other information about the mission and crew.
Meet some of the people who contributed to our understanding of the universe, from the early observers who dared to go against popular belief to those who unlocked the secrets of the cosmos.
The space program has a tradition of adorning their missions with a logo or insignia. Here you'll find artwork from missions such as Mercury, Gemini, Apollo, the Space Shuttle, and more.
Trace the history of man's exploration of space. From Sputnik and the Moon missions, to the Space Shuttle and International Space Station, you'll find man's greatest space achievements listed here.
"Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars."
— Carl Sagan, Astronomer