Questions tagged [apollo-program]

NASA's Apollo program was a 17-mission program that focused on landing a human on the lunar surface. The program was the third human spaceflight by NASA, after Mercury and Gemini.

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Is there any merit to the Apollo 13 (movie) statement “a computer that can hold millions of pieces of information”?

Early in the Apollo 13 movie, Lovell (Tom Hanks) is showing off the Saturn V and states that a part of what has made the moon landings possible is a belief that anything is possible, "things like a ...
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What is the most valuable (potentially useful) man made object on the Moon?

It is relatively expensive to get things from the Earth to the Moon. We know there are three Lunar Roving Vehicles (LRV) on the Moon and that there is some chance they could be made operational. ...
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Why did NASA send two astronauts to the moon instead of one?

I can think of a lot of good reasons for both arguments, and the Soviets made the opposite call for their lander, but what I'm interested in here is this: Given the mass penalty of another man (body ...
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What are the “unpleasant effects” of having a cold in microgravity?

I went to Technik Museum Speyer's space exhibition, which presented an excellent overview of the Apollo missions in a series of posters. The poster describing the Apollo 7 mission (an Earth orbit test ...
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Disc mounted on lunar rover?

My father told me of a story that while he was young working at an electronics company, they all signed a disc that was shrunk down and mounted to one of the lunar rovers. Does anyone know anything ...
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How much extraneous mass did each of the Apollo missions carry?

By "extraneous mass" I am referring to any mass which had not as its primary purpose onboard or attached to the launch vehicle to contribute to the technical or scientific goals of each mission. For ...
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NASA Launch Control: was all of its capacity ever used?

The NASA Launch Control Center at Cape Canaveral has 4 Firing Rooms. Each can support the launch of a spacecraft. Similarly, the VAB was divided into four bays, each large enough to support assembly ...
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How did they sweep dust on the moon from inside the Apollo Lunar Lander?

I noticed from this answer the phrase: by sweeping all the dust we could find How did they sweep dust in the LM? And where did they sweep it to?
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Why not build Saturn V's again?

Why is the US developing a new rocket and spacecraft as opposed to building the Saturn V and Apollo stacks again? The SLS / Orion development programs certainly can't cost less than the unit cost of ...
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Why did the CSM have to perform a 180 degree turn in the Apollo missions after stage separation? [duplicate]

I know it was to dock with the Lunar Module, but why could the parts not be connected from the start to avoid this additional maneuver?
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How was dust-mitigation addressed during the Apollo program?

Dust mitigation in the context of manned landings is now a rather vital topic of research and testing, but back in the days of Apollo it was a fairly new problem. 'Dusty' Gene Cernan inside the LM ...
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What is the mist on Saturn V during launch? [duplicate]

There seems to be a consistent mist effect around the Saturn V when launched. It looks like rapidly evaporating water. What is the material? What is the purpose? Did it come from the rocket itself, or ...
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Did the Apollo F-1 engines gain weight during flight?

I was browsing through Wikipedia when I came across this infographic on the Rocketdyne F-1. It gives the engine dry weight as 18,500 pounds, and the engine burnout weight as 20,180 pounds, meaning the ...
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Did Neil Armstrong really say “Good Luck Mr. Gorsky” on the Moon?

I have heard, that upon standing on the moon, Neil Armstrong at some point said "Good luck Mr. Gorsky". The story being that while a child, playing baseball, through an open window he heard Mrs. ...
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Who installed the camera on the Moon to film the “First step”?

On Wikipedia page on Moon landing, Neil Armstrong is shown stepping down on the surface of the Moon using the spaceship's ladder:        Still frame from a video transmission, taken moments before ...
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At what angle did Apollo 13 need to reenter?

The Apollo missions, like most all missions since, used a heat shield to keep from disintegrating in the atmosphere. This approach had its flaws, however. For one, if your approach was too shallow, ...
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Could the Soviets have rounded the Moon before Apollo? Why didn't they?

Neither the USSR nor Russia has ever sent a cosmonaut beyond low Earth orbit. In the 1960's it would've been very challenging for them to land a cosmonaut on the Moon, and their attempts were aborted. ...
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Where were PFS-1 and PFS-2 stowed aboard Apollo 15 and 16, and how were they released?

This article mentions the deployment of a couple of "subsatellites" into lunar orbit from the Apollo 15 and 16 spacecraft. I had never previously heard of any such action being taken. Where were these ...
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Book recommendation for Apollo program, very specific

I'm looking for a book about the Apollo program that specifically focuses on the logistics of the mission, as if it were a case study in project management. How were records kept, goals tracked, teams ...
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Could the Apollo 13 crew have survived the CO2 issue using their spacesuits

In the book on the ill-fated Apollo 13 mission there is a chapter that contains an overview of the consumables on board the spacecraft, and whether or not they might pose a problem to the survival of ...
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Time to prepare for EVA out of ISS

How much time is needed to an astronaut on ISS to prepare herself for an EVA? Is this time so much different from time needed during Apollo missions?
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Could a single crew member fly the Apollo LM?

We know that the Apollo astronauts were subject to rigorous medical testing prior to launch, and we know that this caused at least one Apollo crew member to be replaced very late in the process. ...
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What are the “everyday” technologies that are a byproduct of the Apollo program?

There is an ongoing debate about the pros and cons of space exploration. One of the oft-cited pros is integrating the spin-off technologies developed for space into everyday life. Did the research ...
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Could an Apollo astronaut have put their foot through the hull of the LEM?

In this interview (part of the extra material from the Apollo 13 film), Tom Kelly of Grumman talks about the construction of the Apollo LEM. In particular he mentions that the "skin" of the LEM was ...
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Was the Apollo's CM pilot qualified for landing on the moon?

Inspired by the comment of @AnthonyX to this answer: Could the Apollo's CM pilot (who would normally have stayed in orbit) have switched to the role of LM pilot/commander if one of the LM personal ...
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On Apollo launches, what altitude would the LES reach?

What altitude would the LES (launch escape subsystem) reach on Apollo launches before falling back to Earth?
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What would happen if the SPS did not fire on Apollo 8?

I have been watching From the Earth to the Moon, and just saw Part 4 which dramatised the Apollo 8 mission. During Apollo 8 the crew placed themselves in orbit around the moon, for one day, and then ...
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What medicines were onboard the Apollo flights?

I'm currently reading through a book covering the early US space program - up through Apollo. In the book, it mentions that one of the crew on one of the flights was sick. He didn't tell mission ...
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Launch roll program for the Saturn five rocket [duplicate]

I have seen many questions answered about the roll program with relation to the shuttle launch and reducing stresses on the launch vehicle and various other reasons, but why was the roll program ...
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Pitch and yaw axes of rocket systems such as Apollo

Broadly speaking, most rocket systems appear to have at least 3 or 4 fold radial symmetry about their long axis (if you don't consider internals or smaller features not obvious from a distance). A ...
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Fortran and the Apollo 11 mission

I was just wondering, as a Fortran user. As far as I know, the simulations taken in order to carry the Apollo 11 mission was written in Fortran 2. I would like to confirm this from a reliable source. ...
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Is true that Armstrong was not designated as first to walk on the moon?

A documentary on Apollo program (I can't remember the name at the moment) states that Aldrin and not Armstrong was the first astronaut designated to walk on the moon. But after LEM landed, mission ...
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Did the Apollo command module have an abort mode?

Many manned space exploration vehicles have some way to abort, to end the mission as quickly as possible and get back to relative safety. I'm wondering if the Apollo command module had an abort, a ...
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Any regolith lunar samples tested for organics?

I looked over this NASA report and it seems to me they didn't analyze for traces of organics any of the deep core samples. Is my assumption correct and if yes why wasn't this test considered?
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What are the small crosses on space pictures, and what's their purpose?

Often I see small crosses on space pictures like this. They are regularly spaced, thin and black. What are them? What's their purpose?
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Where is the first Lunar soil sample currently located?

During Apollo 11, the first manned lunar landing, a "contingency sample" was taken by Neil Armstrong. From Wikipedia: About seven minutes after stepping onto the Moon's surface, Armstrong collected ...
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Have two individual ships been docked directly since Apollo-Soyuz?

During the Apollo-Soyuz test program, the Russians and Americans worked together on missions - and one big objective was to dock Apollo and Soyuz craft together. Afterward, however, there seem to be ...
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What were the differences between the LLRV and LLTV?

The LLRV (Lunar Landing Research Vehicle) was used to develop the LLTV (Lunar Landing Training Vehicle), but were there design differences between the two? Were any major lessons learned from the LLRV ...
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Could parts be salvaged off the Apollo thrusters found on the ocean floor?

In March of this year, Jeff Bezos' team found Saturn V engines on the ocean floor: While they will probably be placed in a museum, I'm wondering if there could possibly be a more practical use for ...
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Do Russian and American spacecraft use the same docking mechanism?

Back in the days of the Apollo era, the Apollo–Soyuz Test Project had the two craft meeting each other in orbit and docking. The stated reason for this was so that if a spacecraft from one country was ...
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Did any Apollo missions have backup parachutes?

NASA's Apollo modules, the ones that went to the moon, had a fairly standard-for-the-time reentry method: Hit the atmosphere at the right angle, deploy a parachute after things are done burning up, ...
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What memorial items were left on the Moon by the Apollo missions?

Wikipedia's article on Apollo 11 indicates that this first mission left behind a flag, an Apollo 1 mission patch, a plaque (on the lander), and a bag with a gold olive branch and a message disk. Over ...
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What technology could the Soviets have contributed to the Apollo program?

Spacedaily writes to say about President. Kennedy's Sept 20th 1963 address to the UN General Assembly "I include among these possibilities," he added, "a joint expedition to the Moon." Why, the ...
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What was the preferred method of holding things down in Apollo?

The Apollo space capsules had a ton of velocity changes - from liftoff, to separations, to reentry to splashdown, there were a lot of sporadic movements. The capsules also needed to carry things that ...
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Was quarantine continued after Apollo 11?

After returning from the Apollo 11 mission, astronauts were placed in quarantine for 18 days (July 24 - August 10, 1969).              &...

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