China's moon cotton experiment ends in freezing lunar night

A cotton seedling sprouted in a mini biosphere on the far side of the moon, but is expected to die during the long lunar night
A cotton seedling sprouted in a mini biosphere on the far side of the moon, but is expected to die during the long lunar night

A cotton seedling that sprouted on the moon has been left to die as China's historic lunar lander continues a freezing night-time nap that will last as long as two earth weeks, scientists said.

The Chinese space agency announced earlier this week that the seed had germinated inside a special canister aboard the Chang'e-4 probe, after the spacecraft on January 3 made the first-ever landing on the far side of the moon.

The mini biosphere—which operated for over 212 hours—was shut down as planned on Saturday, said Chongqing University, which designed the experiment.

The lander also carried potato and arabidopsis seeds—a plant of the mustard family—as well as fruit fly eggs and yeast.

Temperatures inside the ecosystem were expected to plunge below minus 52 degrees Celsius (minus 61.6 degrees Fahrenheit), and the organisms will be "in a frozen state", the university said in a statement on Tuesday.

The experiment ended hours before Chang'e-4 entered "" on Sunday as the first lunar night fell since the probe's landing. Temperatures plummet to about minus 170 degrees Celsius (minus 274 degrees Fahrenheit).

A lunar night lasts for about two earth weeks, after which the probe is expected to wake up, the statement said.

"Life in the canister would not survive the lunar night," Xie Gengxin, who led the design of the experiment, told the official Xinhua news agency.

Once the temperatures start to rise next month, the organisms will be allowed to "slowly decompose" in the permanently sealed canister.

Chang'e-4 is also equipped with instruments developed by scientists from Sweden, Germany and China to study the lunar environment, and the interaction between solar wind and the moon's surface.

The lander released a rover, dubbed Yutu-2 (Jade Rabbit), that will perform experiments in the Von Karman Crater.

China's space agency said it is planning four more lunar missions, confirming the launch of a probe by the end of the year to bring back samples from the moon.

Beijing wants to establish a lunar research base one day, possibly using 3D printing technology to build facilities, the agency said Monday.


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Cottoning on: Chinese seed sprouts on moon

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Jan 17, 2019
Send another 1 to penetrate the chamber and feed over the decomposed stuff.

Jan 17, 2019
A better question would be
"What would be causing the decomposition?"
The interesting news would be,
that it survived the two weeks frozen.
I would guess undetected fungal spores in the soil?

If not? If the growing medium was trully sterile?
Or the spores failed to survive the down time?
With no micro-critter to cause decomposition?
What then?

Jan 17, 2019
The latest trend among American Conservatives is to claim that the entire landing was a fake because the rover landed on the "dark side of the moon", while pictures showed it in full sunlight.

Reflections off the metal parts of the rover on to the lunar soil are claimed to be stage markers.

You see, GOD will never allow mankind to visit another planet like the moon."

MAGA!

Jan 17, 2019
Nearly 40% of Americans think the world is flat and a full 40% of Americans are Trump supporters.

Coincidence?

LOL!


Jan 17, 2019
The Earth is flat?
Damn!
I was hoping to get to visit the inside of the Hollow Earth.
& ride a dinosaur just as all those yec hornswoggling museum dioramas show!

Jan 17, 2019
Haha...of course, the seedling was supposed to die. This was a very poorly designed experiment. The germination period inside the canister in earth-like environment was the month-long spacecraft journey.

The seedling never came out in the open space of Moon. No sunlight, minus 50 C, nothing can survive, even the canister environment is destroyed by Moon.

Jan 17, 2019
You believe some strange stuff, V4Vendicar.

Nearly 40% of Americans think the world is flat

No. Actually about 2%, as would be expected. See here:

https://www.scien...v-debunk

"American Conservatives" encompasses a very large group of people, the vast majority of whom, like liberals and others, have no opinion about the Chinese moon lander (it's not a "rover" since it stays in one spot).

Jan 18, 2019
I was hoping to get to visit the inside of the Hollow Earth.!


You can't visit the center of the hollow Earth because that is where the Moon Nazi's live.

There has even been a documentary produced about it.

https://www.imdb....2130142/

Jan 18, 2019
""American Conservatives" encompasses a very large group of people, the vast majority of whom, like liberals and others, have no opinion about the Chinese moon lander (it's not a "rover" since it stays in one spot)."

98% of American Conservatives support Donald Treason Trump.

I have never encountered a conservative who wasn't a congenital and perpetual liar.


Jan 18, 2019
To repeat, conservative is a individual activity at self-control & acceptance of personal responsibility.

Not a political slogan.

Those who claim to be conservatives?
Have extravagantly blown through most of the Earth's accessible resources.
& are extravagantly attempting to exterminate all life on this planet.

Cause a "liberal" told them not to act so rashly.
That always seems to trigger infantile tantrums in the self-proclaimed conservative clown posse.

Jan 18, 2019
The Chinese are practicing horticulture on the moon in order to develop the capability to grow food for miners when they start mining the asteroid belt.

Jan 18, 2019
okay jax, you have come up with an entirely colossal new definition of "extravagant".

Go to the expense of developing agriculture on the Moon.
Then ship the food produced at outrageous expense, a hundred million miles away?

Huh, you also have achieved a new definition for "Slow boat to China".

Thanks for playing along jax. You make a great straight man for my vaudvillain act!

Jan 20, 2019
Clowns to the left of me...
Jokers to the right....
But I don't mind being...stuck in the middle with you....rr'!

Jan 20, 2019
The Chinese are practicing horticulture on the moon in order to develop the capability to grow food for miners when they start mining the asteroid belt.
Looks kinda dumb to me, they're checking if sunlight actually falls there.

Remember it's a sealed experiment. Says so in the article. Nobody's stupid enough to try to grow plants on the lunar surface.

Jan 20, 2019
Oh DS, you haven't been paying attention.
Among the sordid piles of crap left behind, right behind, by the Sad Puppy Movement, was the self-delusion that altright fairytails are capable of writing Science Fiction.

It is hilarious cataloging all the errors of fact they all share alike. Basically they rehash the same widget on an assembly-line of crappy writing.
They have proven themselves incompetent at creating a coherent, description of Life.

None of them are farmers or ranchers or even gardeners except for the patch of marijuana they keep in the closet. where they hang out.

Incapable of learning a skilled trade or profession.
Disabled both mentally & ,morally.

Their excuse for screwing up even simple geography?
As well as bungling an assortment of other Sciences?

That it is more important to be politically correct than factual.
To be ideologically pure than make the difficult effort & hard work to accurately describe reality.

Jan 20, 2019
The moon is a good place to test (enclosed) agriculture on the asteroid belt. Far enough from earth's magnetic field that it gets the full fifty percent of the cosmic rays. (The other half absorbed by rock.)

They are on the far side so they can keep some stuff secret.

Jan 20, 2019
The Chinese were actually fairly blunt about it by calling it "Jade Rabbit": both are symbols of fecundity.

Jan 20, 2019
Considering the millions of cheap telescopes. Many now automated with cameras including IR capability? Observing the Moon.

& the sophistication of (how many nations now?) assorted spy satellites.

Only a fool would think that any secrets could be hidden anywhere on the Moon.

Guess what? Landing on the Moon leaves hot rock visible for hours? Days? As well as bare rock surrounded by dust patterns.

& only a fool would fool himself into believing that the JCS for the PRCPLAAFSC consists of fools.

Jan 20, 2019
Yes, that's why they landed on the far side: it can't be seen from the earth's vantage point and so provides some secrecy in space that is difficult to match.

You know, the hemisphere behind the "man in the moon"?

Jan 20, 2019
Likely they would also have been smart enough to time it so the far side was not facing L1 or L2, so NASA couldn't, say, spin around SOHO (if that were even feasible) or maybe some other secret spy satellite lurking on one of the first two Lagrange points.

Jan 20, 2019
Pretty sure that would leave them with just one lunar orbiting satellite to dodge, the LRO.

So much for the millions of telescopes.

Jan 21, 2019
Tonight was a lunar eclipse, and so that means seven days ago the moon was midway in its orbit roughly equidistant from L1 and L2, and thus much of the far side would have been unobservable from any satellites in either location.

That means that whenever the LRO was not overhead, they could have complete secrecy for whatever they wanted to keep secret.

Jan 21, 2019
I know, it is senseless to ask a bigot to explain, exactly, what he is in such fear of.
So? Call me Quixote as I tilt at this windbag.

jax my boy. What exactly does have your knickers n such a twist?
If the thought of being forced to eat rice has you terrorized?
Don't worry about it.
You are much more likely to be forced to eat millet!
Rice is a luxury export item for American farmers. Big profits! Or at there were before the senile buffoon tweeted the trade away.

Since you are evidently a dewey-eyed virgin at business, engineering &/or logistics?
I want you to find out what delta/v is,

Then, for a megaton of production & support facilities plus all the construction, production, & maintenance personnel and their supplies?
Including all air & volatiles & water(per person & product)
For a year for a base of 4cubic hectares?

& do the delta/v budget to launch it off this Earth, to that Moon & land it.
No cheating now! You got to do the actual math.

Jan 21, 2019
@rrwillsj,

You have nothing to contribute besides fighting words and sarcasm?

I'm not worried about anything. Merely pointing out the obvious:

(1j that to repeat this experiment on the moon, an experiment done before in the shuttle and the ISS multiple times, the only difference is the degree of cosmic ray exposure outside the earth's magnetic field. A level of exposure consistent with deep space farming on the asteroid belt where food couldn't easily be carted from earth.

(2j the only reason to do it on the far side is to keep something else secret, and that is consistent with the timing of the moon's orbit as well.

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