Party Vibe

Okay let’s go through the arguments –

Bad: First up is the lack of stars in the pictures taken by the Apollo astronauts from the surface of the Moon. Without air, the sky is black, so where are the stars?

Good: The stars are there! They’re just too faint to be seen.
This is usually the first thing people talk about when discussing the Hoax. That amazes me, as it’s the silliest assertion they make. However, it appeals to our common sense: when the sky is black here on Earth, we see stars. Therefore we should see them from the Moon as well.
I’ll say this here now, and return to it many times: the Moon is not the Earth. Conditions there are weird, and our common sense is likely to fail us.
The Moon’s surface is airless. On Earth, our thick atmosphere scatters sunlight, spreading it out over the whole sky. That’s why the sky is bright during the day. Without sunlight, the air is dark at night, allowing us to see stars.
On the Moon, the lack of air means that the sky is dark. Even when the Sun is high off the horizon during full day, the sky near it will be black. If you were standing on the Moon, you would indeed see stars, even during the day.
So why aren’t they in the Apollo pictures? Pretend for a moment you are an astronaut on the surface of the Moon. You want to take a picture of your fellow space traveler. The Sun is low off the horizon, since all the lunar landings were done at local morning. How do you set your camera? The lunar landscape is brightly lit by the Sun, of course, and your friend is wearing a white spacesuit also brilliantly lit by the Sun. To take a picture of a bright object with a bright background, you need to set the exposure time to be fast, and close down the aperture setting too; that’s like the pupil in your eye constricting to let less light in when you walk outside on a sunny day.
So the picture you take is set for bright objects. Stars are faint objects! In the fast exposure, they simply do not have time to register on the film. It has nothing to do with the sky being black or the lack of air, it’s just a matter of exposure time. If you were to go outside here on Earth on the darkest night imaginable and take a picture with the exact same camera settings the astronauts used, you won’t see any stars!
It’s that simple. Remember, this the usually the first and strongest argument the HBs use, and it was that easy to show wrong. Their arguments get worse from here.

Bad: In the pictures taken of the lunar lander by the astronauts, there is no blast crater. A rocket capable of landing on the Moon should have burned out a huge crater on the surface, yet there is nothing there.

Good: When someone driving a car pulls into a parking spot, do they do it at 100 kilometers per hour? Of course not. They slow down first, easing off the accelerator. The astronauts did the same thing. Sure, the rocket on the lander was capable of 10,000 pounds of thrust, but they had a throttle. They fired the rocket hard to deorbit and slow enough to land on the Moon, but they didn’t need to thrust that hard as they approached the lunar surface; they throttled down to about 3000 pounds of thrust.
Now here comes a little bit of math: the engine nozzle was about 54 inches across which means it had an area of 2300 square inches. That in turn means that the thrust generated a pressure of only about 1.5 pounds per square inch! That’s not a lot of pressure. Moreover, in a vacuum, the exhaust from a rocket spreads out very rapidly. On Earth, the air in our atmosphere constrains the thrust of a rocket into a narrow column, which is why you get long flames and columns of smoke from the back of a rocket. In a vacuum, no air means the exhaust spreads out even more, lowering the pressure. That’s why there’s no blast crater! Three thousand pounds of thrust sounds like a lot, but it was so spread out it was actually rather gentle.

Bad: The next argument deals with the lunar dust. As the lander descended, we clearly see dust getting blown away by the rocket. The exhaust should have blown all the dust away, yet we can clearly see the astronauts’ footprints in the dust mere meters from the lander. Obviously, when NASA faked this they messed it up.

Good: Once again, the weird alien environment of the Moon comes to play. Imagine taking a bag of flour and dumping it onto your kitchen floor (kids: ask your folks first!). Now bend over the pile, take a deep breath, and blow into it as hard as you can. Poof! Flour goes everywhere. Why? Because the momentum of your breath goes into the flour, which makes it move. But note that the flour goes up, and sideways, and aloft into the air. If you blow hard enough, you might see little curlicues of air lifting the flour farther than your breath alone could have, and doing so to dust well outside of where your breath actually blew.
That’s the heart of this problem. We are used to air helping us blow things around. The air itself is displaced by your breath, which pushed on more air, and so on. On the Earth, your breath might blow flour that was dozens of centimeters away, even though your actual breath didn’t reach that far. On the Moon, there is no air. The only dust that gets blown around by the exhaust of the rocket (which, remember, isn’t nearly as strong as the HBs claim) is the dust physically touched by the exhaust, or dust hit by other bits of flying dust. In the end, only the dust directly under or a bit around the rocket was blown out by the exhaust. The rest was left where it was. Ironically, the dust around the landing site was probably a bit thicker than before, since the dust blown out would have piled up there.
I can’t resist: another Hoax Believer argument bites the dust.

Bad: The next evidence also involves pictures. In all the pictures taken by the astronauts, the shadows are not black. Objects in shadow can be seen, sometimes fairly clearly, including a plaque on the side of the lander that can be read easily. If the Sun is the only source of light on the Moon, the conspiracy says, and there is no air to scatter that light, shadows should be utterly black.

Good: This is one of my favorite claims. They give you the answer in the claim itself: “…if the Sun is the only source of light…” It isn’t. Initially, I thought the Earth was bright enough to fill in the shadows, but subsequently realized that cannot be the case. The Earth is a fraction of the brightness of the Sun, not nearly enough to fill in the shadows. So then what is that other light source?
The answer is: The Moon itself. Surprise! The lunar dust has a peculiar property: it tends to reflect light back in the direction from where it came. So if you were to stand on the Moon and shine a flashlight at the surface, you would see a very bright spot where the light hits the ground, but, oddly, someone standing a bit to the side would hardly see it at all. The light is preferentially reflected back toward the flashlight (and therefore you), and not the person on the side.
Now think about the sunlight. Let’s say the sun is off to the right in a picture. It is illuminating the right side of the lander, and the left is in shadow. However, the sunlight falling beyond the lander on the left is being reflected back toward the Sun. That light hits the surface and reflects to the right and up, directly onto the shadowed part of the lander. In other words, the lunar surface is so bright that it easily lights up the shadows of vertical surfaces.
This effect is called heiligenschein (the German word for halo). You can find some neat images of it. This also explains another claim, that many times the astronauts appear to be standing in a spotlight. This is a natural effect of heiligenschein. You can reproduce this effect yourself; wet grass on a cool morning will do it. Face away from the Sun and look at the shadow of your head. There will be a halo around it. The effect is also very strong in fine, disturbed dust like that in a baseball diamond infield. Or, of course, on the Moon.

Bad: Another argument deals with shadows. Several photos from the Moon are shown where objects on the lunar landscape have long shadows. If the Sun were the only light source, the program claims, the shadows should be parallel. The shadows are not parallel, and therefore the images are fake.

Good: This is an interesting claim because on the surface it seems to make sense. However, let’s assume the shadows are not parallel. One explanation is that there are (at least) two light sources, and that is certainly what many are trying to imply. So if there are multiple light sources, where are the multiple shadows? Each object casts one shadow, so there can only be one light source.
Another explanation is that the light source is close to the objects; then it would also cast non-parallel shadows. However, a distant source can as well! In this case, the Sun really is the only source of light. The shadows are not parallel in the images because of perspective. Remember, you are looking at a three-dimensional scene, projected on a two-dimensional photograph. That causes distortions. When the Sun is low and shadows are long, objects at different distance do indeed appear to cast non-parallel shadows, even here on Earth. The scene (near the bottom of the above-linked page) shows objects with non-parallel shadows, distorted by perspective. If seen from above, all the shadows in the Apollo images would indeed look parallel. You can experience this for yourself; go outside on a clear day when the Sun is low in the sky and compare the direction of the shadows of near and far objects. You’ll see that they appear to diverge. Here is a major claim of the HBs that you can disprove all by yourself! Don’t take my word for it, go out and try! Incidentally, the bright Earth in the sky will also cast shadows, but those would be very faint compared to the ones made by the Sun. So in a sense there are multiple shadows, but like not being able to see stars, the shadows are too faint to be seen against the very bright lunar surface. Again, you can test this yourself: go outside during full Moon and you’ll see your shadow. Then walk over to a streetlamp. The light from the streetlamp will wash out the shadow cast by the Moon. You might still be able to see it faintly, but it would difficult against the much brighter landscape.

Bad: Ralph Rene, a self-proclaimed physicist, claims that the astronauts shifting in the cabin would change the center of mass, throwing the lunar lander off balance. They couldn’t compensate for this, which would have crashed the lander. Thus, the landing was faked.

Good: Rene is wrong. Evidently he doesn’t know how the internet works either, because there is a website which describes how the attitude control was maintained on the lander during descent and ascent; it’s the Apollo Saturn Reference page. There was a feedback control system on board the lander which determined if the axis were shifting. During descent, the engine nozzle could shift direction slightly to compensate for changes in the center of gravity of the lander (the technical term for this is gimbaling the nozzle). During ascent, the engine nozzle was fixed in position, so there was a series of smaller rockets which was used to maintain the proper attitude. Incidentally, every rocket needs to do this since fuel shifts the center of gravity as it is burned up by the rocket, yet Rene doesn’t seem to doubt that rockets themselves work! So we have a case of selective thinking going on here.

Good: This is funny. To me even when sped up, the images didn’t look like they were filmed in Earth’s gravity. The astronauts were sidling down a slope, and they looked weird to me, not at all like they would on Earth. I will admit that if wires were used, the astronauts’ gait could be simulated.
However, not the rover! If you watch the clip, you will see dust thrown up by the wheels of the rover. The dust goes up in a perfect parabolic arc and falls back down to the surface. Again, the Moon isn’t the Earth! If this were filmed on the Earth, which has air, the dust would have billowed up around the wheel and floated over the surface. This clearly does not happen in the video clips; the dust goes up and right back down. It’s actually a beautiful demonstration of ballistic flight in a vacuum. Had NASA faked this shot, they would have had to have a whole set (which would have been very large) with all the air removed. We don’t have this technology today!
This is another case of selective vision.

The answer is, the flag isn’t waving. It looks like that because of the way the flag was deployed. The flag hangs from a horizontal rod which telescopes out from the vertical one. In Apollo 11, they couldn’t get the rod to extend completely, so the flag didn’t get stretched fully. It has a ripple in it, like a curtain that is not fully closed. In later flights, the astronauts didn’t fully deploy it on purpose because they liked the way it looked. In other words, the flag looks like it is waving because the astronauts wanted it to look that way. Ironically, they did their job too well. It appears to have fooled a lot of people into thinking it waved.
This explanation comes from NASA’s wonderful spaceflight web page. For those of you who are conspiracy minded, of course, this doesn’t help because it comes from a NASA site. But it does explain why the flag looks as it does, and you will be hard pressed to find a video of the flag waving. And if it was a mistake caused by a breeze on the set where they faked this whole thing, don’t you think the director would have tried for a second take? With all the money going to the hoax, they could afford the film!
One more thing. If the flag is blowing in a breeze, why don’t we see dust blowing around too?

Bad: A big staple of the conspiracy is the claim that radiation in the van Allen Belts and in deep space would have killed the astronauts in minutes. They interview a Russian cosmonaut involved in the USSR Moon program, who says that they were worried about going in to the unknowns of space, and suspected that radiation would have penetrated the hull of the spacecraft.

Good: This is complete and utter nonsense. The van Allen belts are regions above the Earth’s surface where the Earth’s magnetic field has trapped particles of the solar wind. An unprotected man would indeed get a lethal dose of radiation, if he stayed there long enough. Actually, the spaceship traveled through the belts pretty quickly, getting past them in an hour or so. There simply wasn’t enough time to get a lethal dose, and, as a matter of fact, the metal hull of the spaceship did indeed block most of the radiation. For a detailed explanation of all this, my fellow Mad Scientist William Wheaton has a page with the technical data about the doses received by the astronauts. Another excellent page about this, that also gives a history of NASA radiation testing, is from the Biomedical Results of Apollo site.
It was also disingenuous of the program to quote the Russian cosmonaut as well. Of course they were worried about radiation before men had gone into the van Allen belts! But tests done by NASA showed that it was possible to not only survive such a passage, but to not even get harmed much by it.

The claims go on and on, and indeed, if you go to conspiracy websites you can read more than any brain can handle. I have read literally dozens of things that “prove” the landings were faked, and each one is rather easily shown to be wrong by anyone with experience in such things. I think the problem here is twofold: we tend to want to believe (or at least listen to) conspiracy theories, and this one is a whopper. Also, the evidence is presented in such a way that, if you are unfamiliar with the odd nature of the vacuum of space and of space travel, it sounds reasonable. But it isn’t reasonable. Their evidence is actually as tenuous as the vacuum of space itself. I find it amazing that they are so willing to scrutinize every available frame of data from the astronauts, yet miss the most obvious thing right in front of them.