Space Rocket History Archive

Space Rocket History #33 – Science Overload – Mercury-Atlas 7, Aurora 7 with Scott Carpenter

After the successful completion of the Mercury-Atlas 6 flight that carried John Glenn into orbit, it was Scott Carpenter’s turn to pilot Mercury-Atlas 7, which he named Aurora 7.  The mission was essentially a repeat of John Glenn’s 3 orbit mission, except the focus of  this mission was on science. The full flight plan included the first study of liquids in weightlessness, Earth photography, star observations, Venus sightings and a multitude of other experiments…

Space Rocket History #32 – Ranger-4, Ariel-1, and Telstar-1

As part of the pre-Apollo preparations, NASA created the Ranger series of missions to take high-quality pictures of the Moon and transmit them back to Earth in real time…

Space Rocket History #31 – Godspeed John Glenn – Mercury-Atlas 6 – Friendship 7 – Part 2

Mercury Control was still undecided on the course of action to take with the heat shield problem. Some controllers thought the retrorocket pack should be jettisoned after retrofire, while other controllers thought the retro pack should be retained, as added assurance that the heat shield would stay in place…

Space Rocket History #30 – Godspeed John Glenn – Mercury-Atlas 6 – Friendship 7 – Part 1

“I am in a big mass of some very small particles, they’re brilliantly lit up like they’re luminescent. I never saw anything like it! They round a little: they’re coming by the capsule and they look like little stars. A whole shower of them coming by. They swirl around the capsule and go in front of the window and they’re all brilliantly lighted.”  John Glenn – Friendship 7

Space Rocket History #29 – Mercury-Atlas 5 With Enos

Following the successful suborbital missions of Allan Shepard and Gus Grissom, NASA believed the Mercury capsule was ready for an orbital mission.  But, there was a problem, the Redstone booster did not have the power to place the Mercury capsule into orbit.  The Atlas booster had the power to put the capsule in orbit but not the confidence of NASA.  By September of 1961 Four launches of the mercury-atlas had been made with only a 50 percent success rate…

Space Rocket History #28 – Vostok 2 With Gherman Titov

After Alan Shepard and Gus Grissom’s suborbital flights and less than four months after Gagarin’s became the first man in space, the soviet union stunned the world with yet another manned mission.

Space Rocket History #27 – Mercury-Redstone 4 – Liberty Bell 7 with Gus Grissom

Mercury-Redstone 4 was the fourth mission in the Mercury-Redstone series and the second U.S. manned suborbital spaceflight. The mission was essentially a repeat of Alan Shepard’s Freedom 7 flight.   So why was it necessary to launch another sub-orbital mission?  Why not proceed with an orbital flight to match the Soviet Vostok 1?  Among other things the U.S. needed more space experience to corroborate the “Man-in-Space” concept.  Also the Redstone was the only booster NASA had that was approved for manned launches.  The Atlas booster was available but not ready.  Atlas was capable of putting a Mercury Capsule into orbit, but it had been launched three times with unmanned capsules, and it had exploded on 2 of the 3 attempts.

Space Rocket History #26 – Why the Moon?

“We have been plunged into a race for the conquest of outer space. As a reason for this undertaking some look to the new and exciting scientific discoveries which are certain to be made. Others feel the challenge to transport man beyond frontiers he scarcely dared dream about until now. But at present the most impelling reason for our effort has been the international political situation which demands that we demonstrate our technological capabilities if we are to maintain our position of leadership. For all of these reasons we have embarked on a complex and costly adventure. It is the purpose of this report to clarify the goals, the missions and the costs of this effort in the foreseeable future, particularly with regard to the man-in-space program.” From 1960 Ad Hoc Panel on Man-In-Space.

Space Rocket History #25 – Mercury Redstone 3 – Freedom 7 with Alan Shepard

Over 52 years ago, in the early hours of May 5th, 1961 the US prepared to launch its first man into space. Three weeks earlier, the Soviet Union had sent Yuri Gagarin on an orbital mission. This was a suborbital mission planed to last only 15 minutes. For the moment that did not matter, the entire nation held its breath while Alan Shepard became America’s first man in space.

Space Rocket History #24 – Mercury Redstone Test Flights – Ham in a Can

The objectives of the Mercury Project, were as follows:
1. Place a manned spacecraft in orbital flight around the earth.
2. Investigate man’s performance capabilities and his ability to function in the environment of space.
3. Recover the man and the spacecraft safely.
After the objectives were established for the project, a number of guidelines were created to insure that the most expedient and safest approach for attainment of the objectives was followed. The basic guidelines that were established are as follows:
1. Existing technology and off-the-shelf equipment should be used wherever practical.
2. The simplest and most reliable approach to system design would be followed.
3. An existing launch vehicle would be employed to place the spacecraft into orbit.
4. A progressive and logical test program would be conducted.