The Apollo 11 mission, which ended up sending Neil Armstrong and Buzz Aldrin to the Moon in July of 1969, has largely been considered, as not only NASA's, but the entire mankind's finest endeavor.

But many have strongly argued that the Apollo 13 mission was in no way less. If anything, it was even more heroic and an even greater achievement. Jack Swigert and Fred Haise, the astronauts, and their Commander Jim Lovell were trapped inside a spacecraft which was not only low on power, but also did not have sufficient supply of basics like water.

To top everything, the carbon dioxide levels were rapidly rising.

Had it not been for the ingenuity of the engineers at mission control and the courage displayed by the astronauts themselves, the three men would have ended up dying in space.

Many consider the fact that the men aboard Apollo 13 managed to touch the Earth alive quite a miracle, to say the least.

After the tragedy, the Apollo 13 never went into space, but the mission is largely remembered and respected and many believe that it might just be a much bigger mission than Apollo 11.