As Artemis II zooms to the Moon, everything seems to be going swimmingly

mark625

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That's correct, people of the Northern Hemisphere are completely unused to seeing their planet 'upside down'.

Here it is, "corrected" with my feeble MS-Paint skills.
 

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Jensen404

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Even with a long exposure, I'm surprised the night side of the Earth looks that bright and detailed. Could some false color have been applied? And, if that is an extended exposure, then the small bright dot can't be the Sun, more likely Venus.
Someone on social media was skeptical of the photo because the Sun is over 400,000 times brighter than the moon, so I decided to test it and check out the math.

If I take a photo of clouds on a mostly sunny day with my DSLR, with the camera and lens set to 1/3200s F4 at ISO 100, clouds are still quite bright. At 1/1000s some of the brightest parts of the clouds will be clipped.

This Earth photo was taken at 1/4s F4 at ISO 51200. That increases the recorded brightness by a factor of 409,600.

The only sign of "false color" I see is heavy-handed color noise reduction. A raw photo with minimal processing will have very colorful noise, while the noise in the provided image is almost monochromatic.

Human eyes lose color sensitivity in low light, but camera sensors have the same color sensitivity at any brightness.
 
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Hispalensis

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The budget hasn’t been cut. The White House’s budget request has NASA cuts in it but Congress can ignore that, just like the last budget.
I think this is actually worse: this is the "sky is the limit" budget before the realities of appropriations sink in, and yet the US gov's take is: we don't care about the science, we want half of you gone. It still feels that your parents want to abandon you, it is just that the law doesn't let them.
 
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Fatesrider

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Lucky dice roll! I'm under the impression that this is quite common, as many as 1 in 2 or 1 in 3 astronauts on a mission typically end up getting it. Something like that.

Also, apparently, it's variable? People can get it initially for some missions, but not get it during others.

A bit like altitude sickness, in that respect—sometimes people who have been up a mountain multiple times can come down with a severe case on a subsequent summit attempt without apparent supporting cause. (Luckily, afaik, space adaptation syndrome is not usually the medical emergency that altitude sickness can be.)
There are reams of studies about space adaptation syndrome. Certain physical causes aside, anything that adversely impacts the vestibular system will cause it. Almost every astronaut has had some level of it at some point. My understanding is that the variables which play into when an individual are likely to get it are really hard to predict.
 
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NetMage

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yet the US gov's take is: we don't care about the science, we want half of you gone.
Except that isn’t the US gov’t’s take, and that’s the reason the cuts didn’t happen. That’s the president’s take, or at most, the president and some of the executive branch.
 
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Ianal

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Swimmingly... what a perfect descriptor for aquanauts. All of this is so fake. Disgustingly fake. I'm so sick of the extreme deception in this country.

"Listen, babe, things are going just swimmingly, just beautiful."

- Colonel Michael Collins, Command Module Pilot, Apollo 11.

I, for one, appreciated the shout-out. :)
 
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This Earth photo was taken at 1/4s F4 at ISO 51200. That increases the recorded brightness by a factor of 409,600.
What the... I was familiar with older DSLRs having max usable ISO 6400 before blotchiness and noise turned the image into a digital suggestion. But ISO 51,200 and 1/4s at f4? The real scene must have been pretty dim.

I've been critical of SLS pork over the years but this image almost makes the Artemis missions worth the price. It's good to see America at the forefront of space exploration again.

In a way, it feels like the late 1960s all over again - civil rights demonstrations nationwide, police and government brutality at home, a war in Vietnam that didn't look like it would ever end, and lunar missions showing what humanity could do on a good day.
 
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FranzJoseph

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What the... I was familiar with older DSLRs having max usable ISO 6400 before blotchiness and noise turned the image into a digital suggestion. But ISO 51,200 and 1/4s at f4? The real scene must have been pretty dim.
Well, the scene is essentially the same brightness as down here outside on a full moon night, to give you some idea.

Oh, and there are now specialised cameras that can capture FHD colour video up to ISO 4,000,000…
 
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Vnend

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Is that photo the one described, of the Earth's night side? It can't be, but some of the details mentioned match the image... I'm confused

The night side of the Earth was lit by moonlight. After that, a little Photoshop can go a long way.

I am a little surprised by the claim that the bright object to the left of the Earth was the sun; I thought it was probably Venus, but I haven't fired up a skymapping app to check. Annoyed at myself for not recognizing the zodiacal light (my apologies to Dr. May), but then I think I've only seen and recognized it once or twice with my own eyes.
 
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TheSolutor

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Isn’t temperature control a closed loop system that keeps temperature in a narrow band? Why does it need manual adjustment? And why does that adjustment cause a massive 10 degree change? House/car/hotel room HVAC is better than that at 1/millionth(? pick a number) the cost.
Looks like you never boarded a commuter train here (Italy).


Keeping the right temp seems more difficult than getting a commercially viable nuclear fusion... /s
 
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ZenBeam

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Yes, it is a night side long exposure picture. The Moon is currently pretty much full (98.5%) which means the Sun is “behind” the Earth and Orion is between the Earth and the Moon, hence the bright arc from sun lit side.

The Planets Today

I'm wondering if the bright area just a little above and slightly to the right of center is the reflection of the Moon off the ocean.
 
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EvolvedMonkey

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The crew is reporting the smell of something burning. Apparently some amount of that is expected but the crew and ground team are unsure of how much is expected. It's worse than the last time they smelled it (apparently that was related to the toilet).
I can’t imagine it helps having so many people in a cabin for this: as soon as one person notices it and comments it’s going to hit the others, and this is 4 versus 3 in Apollo.

Maybe future missions need some sort of pre mission exposure to a similar smell for the last few days on earth to make it acclimatised and stop the brain from noticing it. I.e. a drop of lotion or balm just inside the nostrils.
 
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Quixotic999

Smack-Fu Master, in training
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'There have also been some “false alarms” in the cabin from various environmental sensors. However, Hu said, these are not at all a threat to the crew but rather reflect conservative limits set for those systems'

There is always a public face for these risky ventures where all is within expected parameters whereas behind the scenes there are probaby hundreds of exceptions/errors for something like this with many not so easy to dismiss. So some panic with much frantic work trying to investigate/understand, implement workarounds, skip over, hoping the impact has been correctly assesed and it turns out well.
 
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Statistical

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Even with a long exposure, I'm surprised the night side of the Earth looks that bright and detailed. Could some false color have been applied? And, if that is an extended exposure, then the small bright dot can't be the Sun, more likely Venus.
Just long exposure. Keep in mind the moon makes a nice light source. The dot is not the sun. Eric was saying the sun is lighting the atmosphere. The sun is on the far side of the Earth in this picture but you can see a gleam of sunlight in the atmosphere glow on the lower right hand side. One thing I like about this photo is it shows just how low Low Earth Orbit is. Using some pixel counting the edge of the atmosphere glow is right around 100 km and the ISS would be only 4x further. With LEO we have barely left the shore.

The unusual nature of this photo has already fueled conspiracy theorists saying NASA screwed up with this fake photo which proves everything is fake.
 
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Statistical

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The night side of the Earth was lit by moonlight. After that, a little Photoshop can go a long way.

I am a little surprised by the claim that the bright object to the left of the Earth was the sun; I thought it was probably Venus, but I haven't fired up a skymapping app to check. Annoyed at myself for not recognizing the zodiacal light (my apologies to Dr. May), but then I think I've only seen and recognized it once or twice with my own eyes.

The bright object is not the sun. I believe Eric was saying the sun is illuminating the Earth atmosphere. The glow in the lower right hand corner peeking through the atmosphere is from the sun on the far side of the Earth.
 
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Statistical

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tI can’t imagine it helps having so many people in a cabin for this: as soon as one person notices it and comments it’s going to hit the others, and this is 4 versus 3 in Apollo.

Maybe future missions need some sort of pre mission exposure to a similar smell for the last few days on earth to make it acclimatised and stop the brain from noticing it. I.e. a drop of lotion or balm just inside the nostrils.

It is why this being a crewed flight makes sense. I know many on ars advocated or it to be uncrewed but at some you need the human element. The crew is doing a lot of filming themselves doing various tasks which will be used as training footage for future crews. This crew had to largely imagine how all this will look/work in zero gravity. Same thing with subjective aspects like smells, sounds, and vibration. How much is "normal" The warning thresholds for various sensors likely need adjustment as well. There will be changes in automatic processes and schedules. That is the point of a shakedown cruise to go from concept/theory to practical functional mission plan. Most of it is boring stuff but it has to be done and getting it done derisks future missions.

Now you could have done all of this on Artemis III but Artemis III is going to be a packed missions already. The knowledge gained in Artemis II will improve the outcomes of Artemis III. If Artemis III is as successful we should have a high confidence of the entire mission architecture except the lunar surface part to include landing and ascent. Granted that is a lot remaining but it would be worse if all of it was low confidence.
 
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I miss Carl Sagan!
I was an avid watcher of " Cosmos ". Later in life I was diagnosed with a medical condition which my consultant diagnosed as a " Cinderella " disease in that research into it didn't get a lot of resources because it was quite rare and quite low profile. She said the only two well known people to have died with the condition were Larry Hagman, and Carl Sagan. It may seem a bit weird, but I remember thinking, I've got the same medical condition as Carl Sagan, that's quite cool.
 
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I was an avid watcher of " Cosmos ". Later in life I was diagnosed with a medical condition which my consultant diagnosed as a " Cinderella " disease in that research into it didn't get a lot of resources because it was quite rare and quite low profile. She said the only two well known people to have died with the condition were Larry Hagman, and Carl Sagan. It may seem a bit weird, but I remember thinking, I've got the same medical condition as Carl Sagan, that's quite cool.
Larry Hagman? Sounds like it could have been a plot from Dallas. "You've got a condition so rare we hardly know anything about it." They could have run an entire season with it.

The obvious tie in to this article is that Larry Hagman famously played an astronaut on tv.

Hope not to offend and that you are doing as well as can be.
 
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Of course it's too cold on the cabin. There is a woman on board. I've lost track of how many men have said something about how much colder the women in their lives want the temperature set at. My late wife used to say "I can only take so much off. Put on a sweater."
It seems to be required that a cold-natured person will marry a hot-natured person. The cold-natured person is then condemned to live as a mummy.
 
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George Moromisato

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You switched it the wrong way though, Fahrenheit doesn't exist in space.
One of my character flaws is that I hate metric supremacists. The idea that out of all the invented measuring systems, Metric is the One True System just because we happen to have ten fingers is just so ludicrous to me.

Real scientists/engineers are comfortable with any system, and indeed use different systems depending on the domain. Talk to a scientist studying Saturn and they will measure things in Saturn radii (which is not SI, by the way).
 
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