Yuri Gargarin, the first person in space, cosmonaut Pavel Popovich, and others discuss the day he was sent into orbit. Gagarin was a Soviet pilot and cosmonaut during the Cold War and went into space in 1961 on the Vostok spacecraft. He was awarded the Hero of the Soviet Union, the nation's highest honor.

Alan Shepard, the first American to go to outer-space, talks about the space race with Yuri Alekseyevich Gagarin and him during the Cold War. He talks about the problems America faced in the battle to get to space before the Soviet Union. Gagarin was a Soviet pilot and cosmonaut. He became the first person to go into outer-space in 1961 on the Vostok spacecraft. He was given the Hero of the Soviet Union award, the nation's highest honor.

Dr. Joe Liske and ESA (European Space Agency) discusses the amazing data that the Hubble Space Telescope has given science and researchers. This first person account details specifically how Hubble has spotted the rare Supernovae. The Hubble Space Telescope (HST) is a space telescope that was carried into orbit by a Space Shuttle in 1990 and remains in operation. Hubble is one of the largest and most versatile, and is well known as both a vital research tool and a public relations boon for astronomy.

Dr. Ed Weiler, considered by many as the face of the Hubble Space Telescope, discusses the Hubble’s history and the ups and down of his scientific achievement. The Hubble Space Telescope (HST) is a space telescope that was carried into orbit by a Space Shuttle in 1990 and remains in operation. Hubble is one of the largest and most versatile, and is well known as both a vital research tool and a public relations boon for astronomy.

The 2013 Chelyabinsk meteor passed over Russia on February 15, 2013 creating a state of panic to the areas that it passed closely by. The meteor exploded in the atmosphere creating a strong shock wave, which damaged about 7,200 buildings in six different cities. This destruction in infrastructure also led to 1,500 injured people. Eyewitness explain what they experienced that day.

Jack Moss, an optometrist from Corydon, Indiana, traveled to Florida to watch the Challenger blastoff. He recorded the event on his new video camera, still a novelty in 1986. In this eyewitness footage, Moss and others react to the explosion. First they are confused by the twin vapor clouds, then they realize that the launch has gone wrong. Moss gave this footage to the Space Exploration Archive shortly before he passed away in 2009. The Challenger explosion took place on January 28, 1986.

Former astronauts discuss what it what like working with Neil Armstrong, the first man to walk on the moon. Jim Lovell, Commander of Apollo 13 and Gene Cernan, the last man on the moon, remember what it was like first meeting Neil. Their first person accounts involve recalling what Neil was like before he became famous and also what he was like when they all toured together in Iraq. Neil was also an aerospace engineer, naval aviator, test pilot, and university professor. He set his left boot on the surface of the moon at 2:56 UTC July 21, 1969, then spoke the famous words "That's one small step for man, one giant leap for mankind." He died on August 25, 2015.

A woman discusses the achievements and death of American astronaut Neil Armstrong, the first man to walk on moon. Her first person account reveals how his family wants Americans to honor Neil and addresses his heart surgery. Neil was also an aerospace engineer, naval aviator, test pilot, and university professor. He set his left boot on the surface of the moon at 2:56 UTC July 21, 1969, then spoke the famous words "That's one small step for man, one giant leap for mankind." He died at age 82 from a heart complication.

Reporter Walter Cronkite watches Apollo 8 take-off live and describes what he can feel during the launch from nearby. Cronkite also comments on the successful separation of the rocket from the module. The mission launched on December 21, 1968 and is known for capturing a photo of the first 'Earth Rise' any man had seen. The crew of Apollo 8 returned to Earth on December 27th.

Astronaut Jim Lovell explains the story behind his famous quote about Santa Claus and comments on being in space on Christmas Eve. The mission that launched on December 21, 1968 is known for the 'Earth Rise' photo, the first time any man had witnessed the sight. Apollo 8 returned to Earth on December 27th.