SCI China Rover Discovers "Mystery Hut" On Dark Side Of Moon (Spoiler - it's a rock)

Mac

Veteran Member
Cube shaped huh??? I've seen that episode, lol.

389.jpg
 

bw

Fringe Ranger
The horrible picture quality was almost certainly intentional, the Chinese probably already know what it is and if it is debris from a failed space mission or something, they are warning the people who know about it that they have it.

Or it's zoomed much more than we think, and it's the size of a sugar cube.
 

tanstaafl

Has No Life - Lives on TB
It's going to take 2-3 months to move 262 feet? :lkick::chkn:

I don't know it for a fact but I imagine the Chinese probably don't have their orbiter in a halo orbit (look it up) which would give them constant communications, so they're probably only talking to their rover a few hours (or less) on any given day. Try driving a remote control car from 250,000 miles away through a bombed out city when you can only see what the RC car sees for only about one hour out of every 24 hours and maybe 22 of those hours have lousy light conditions (don't forget the lunar night is two weeks long and lighting at noon leaves no shadows for contrast). Remembering that if you drive it into a crater where the slopes are perhaps even 15 degrees you won't be getting back out again or if you high center it on a Moon rock that's it for the mission. No pressure, but if you screw up you and your entire family might be punished since you can't ever forget that your boss is the Chinese government and you've overheard the mission bosses talking about Uyghurs and organ transplants while they're glaring at you. Oh, and you have dozens if not hundreds or thousands of back seat drivers yelling advice in your ear.

Now tell us again how inept the Chinese mission techs must be to take 2-3 months to drive 262 feet.
 

bw

Fringe Ranger
Could it be some sort of probe that was sent to orbit the moon that very slowly descended and landed "softly" due to the low gravity?

If it landed softly it had to be using rockets. The moon's escape velocity is over 2 km/sec, so the slowest a ballistic object can hit the moon is an appreciable portion of that.
 

Macgyver

Has No Life - Lives on TB
No. Anything orbiting the Moon and deorbiting naturally is still going to hit hard enough to pretty much demolish any machine. One-sixth of Earth's gravity is still a lot of gravity.
That makes sense, for some reason I thought it was less than that.
 

bw

Fringe Ranger
Gravitational dynamics are computationally reversible. The speed you need for launching something to a height of 50 miles is exactly the speed it will hit at if you drop it from 50 miles up. Discounting atmosphere, of course. So if you know the escape velocity, you know the slowest possible impact of something coming from outside the gravity influence.

I had an email exchange with Neil Tyson and he confirmed this.

A ballistic object dropped from orbit is closer and can hit slower, but it's still a significant portion of EV.
 

Doc1

Has No Life - Lives on TB
It's the nexus of the entire CCP conspiracy: It contains cash to buy more of Hunter Biden's worthless "art," a little room to store said art and a coffin for Hunter when he's outlived his usefulness.

Simple, ennit?

Best
Doc
 

NHGUNNER

Senior Member
I don't know it for a fact but I imagine the Chinese probably don't have their orbiter in a halo orbit (look it up) which would give them constant communications, so they're probably only talking to their rover a few hours (or less) on any given day. Try driving a remote control car from 250,000 miles away through a bombed out city when you can only see what the RC car sees for only about one hour out of every 24 hours and maybe 22 of those hours have lousy light conditions (don't forget the lunar night is two weeks long and lighting at noon leaves no shadows for contrast). Remembering that if you drive it into a crater where the slopes are perhaps even 15 degrees you won't be getting back out again or if you high center it on a Moon rock that's it for the mission. No pressure, but if you screw up you and your entire family might be punished since you can't ever forget that your boss is the Chinese government and you've overheard the mission bosses talking about Uyghurs and organ transplants while they're glaring at you. Oh, and you have dozens if not hundreds or thousands of back seat drivers yelling advice in your ear.

Now tell us again how inept the Chinese mission techs must be to take 2-3 months to drive 262 feet.

Wow...that makes a lot of sense. Thanks!
 
I don't know it for a fact but I imagine the Chinese probably don't have their orbiter in a halo orbit (look it up) which would give them constant communications, so they're probably only talking to their rover a few hours (or less) on any given day. Try driving a remote control car from 250,000 miles away through a bombed out city when you can only see what the RC car sees for only about one hour out of every 24 hours and maybe 22 of those hours have lousy light conditions (don't forget the lunar night is two weeks long and lighting at noon leaves no shadows for contrast). Remembering that if you drive it into a crater where the slopes are perhaps even 15 degrees you won't be getting back out again or if you high center it on a Moon rock that's it for the mission. No pressure, but if you screw up you and your entire family might be punished since you can't ever forget that your boss is the Chinese government and you've overheard the mission bosses talking about Uyghurs and organ transplants while they're glaring at you. Oh, and you have dozens if not hundreds or thousands of back seat drivers yelling advice in your ear.

Now tell us again how inept the Chinese mission techs must be to take 2-3 months to drive 262 feet.
Don’t forget the delay in commands and confirmations.
 

tanstaafl

Has No Life - Lives on TB
I found this graphic (see below) showing various rovers on the Moon and Mars -- I updated the distance travelled numbers for Curiosity and Yutu 2 (per Wikipedia). It's fascinating that the Curiosity rover on Mars is still active nine years later, seven years longer than originally planned. I also found this bit of rover trivia (also from Wikipedia) that I think is interesting (no idea what the "Lord British" is in reference to):

Richard Garriott (son of the astronaut Owen K. Garriott) legally owns the old Soviet Lunokhod-2 lunar rover. He paid $68,500 for it in December 1993 at a Sotheby's auction in New York. According to Garriott, "I am now the world's only private owner of an object on a foreign celestial body. Though there are international treaties that say no government shall lay claim to geography off planet earth, I am not a government. Summarily, I claim the moon in the name of Lord British!"

rovers.jpg

(full size graphic at Driving Distances on Mars and the Moon – NASA’s Mars Exploration Program)
 

tanstaafl

Has No Life - Lives on TB
I don't know it for a fact but I imagine the Chinese probably don't have their orbiter in a halo orbit ...

Well, there I was researching the Sun-Jupiter Lagrange points and damned if I didn't find that the Chinese do have a communications satellite in a lunar halo orbit supporting their rover mission! They apparently can, in fact, communicate with their rover anytime they want, even though the rover site is not directly visible from Earth. As far as I knew no other space power has put a probe permanently into a lunar halo orbit before (although at least two have passed through the Earth-Moon's L2 point where a halo orbit could be located), which is why I didn't think the Chinese would have done it either. I guess that makes this a space first for the Chinese.

-----

"Direct communication with Earth is impossible on the far side of the Moon, since transmissions are blocked by the Moon. Communications must go through a communications relay satellite, which is placed at a location that has a clear view of both the landing site and the Earth. As part of the Lunar Exploration Program, the China National Space Administration (CNSA) launched the Queqiao relay satellite on 20 May 2018 to a halo orbit around the Earth–Moon L2 point. The relay satellite is based on the Chang'e 2 design, has a mass of 425 kg (937 lb), and it uses a 4.2 m (14 ft) antenna to receive X band signals from the lander and rover, and relay them to Earth control on the S band." (Chang'e 4 - Wikipedia)
 

tanstaafl

Has No Life - Lives on TB
By the way, in my same research I found that at least one of the Earth-Moon Lagrange points actually has objects in it (I think these would be a better location for the Tardis since only the L4 and L5 points are really stable in the long-term) in much the same way the Sun-Jupiter Lagrange system has its semi-famous trojan asteroids in that system's L4 and L5 points. I also found that the Sun-Jupiter trojans may well contain as many asteroids as in the entire Asteroid Belt, although for some reason I find that a difficult concept to grasp. From my new notes:

Earth has two known trojan asteroids at the L4 (leading) point: 2010 TK7 (300 meters, discovered in January 2010 by the Wide-field Infrared Survey Explorer (WISE) satellite) and 2020 XL5 (discovered in December 2020 by a Pan-STARRS survey). There are no known trojan asteroids at the L5 (trailing) point. In February 2017 the OSIRIS-REx spacecraft performed a search from within the L4 region on its way to asteroid Bennu and no additional Earth trojans were discovered. In April 2017 the Hayabusa-2 spacecraft searched the L5 region while proceeding to asteroid Ryugu and no Earth trojans were discovered.
 

Dobbin

Faithful Steed
Anyone who has bought Chinese knock-off auto parts can explain it to you.
Harbor Freight rubber tires.

Owner opens the box on the OTHER side of the barn, and I can smell the uncured rubber.

"Stoopid Americans voted for Joe Biden - they won't care."

Dobbin
 

tanstaafl

Has No Life - Lives on TB
Remember that ‘cube-shaped’ object China’s lunar lander spotted on the moon? Now we know what it is.

by Linda Hasco
The Oregonian
January 10, 2022

In November 2021 a mysterious object was spotted on the horizon by China’s Yutu 2 rover as it worked its way across Von Kármán crater on the far side of the moon, drawing much speculation. Many described it as looking like a “house” and called it the “mystery hut,” various news outlets reported.

According to a report by MSN, the mystery has finally been solved. The object turns out to be — a rock — an “amusing conclusion” to an enigma that garnered so much flutter in December.

The report said that the cube-shaped “hut” is actually “a small lumpy rock sitting on a crater rim.” However, in the rover’s first image, it did look much bigger and more mysterious. A closer look with more perspective allowed the rover to reveal “the object’s true nature.”

The New York Times reported that what seemed to be a perfect geometric shape was just “a trick of angle, light, and shadow.”

But in an interesting twist, The Times noted that one of the rover’s remote drivers on Earth pointed out that the rock looked a bit like a rabbit and one of the stones in front of it looked somewhat like a carrot — which is fitting since the rover’s name means “Jade Rabbit.”

According to The Times, in the history of space exploration, visual illusions are common, “whether seen by astronomers peering through telescopes on Earth or robotic explorers on other worlds capturing images with cameras.”

 

AlfaMan

Has No Life - Lives on TB
I was thinking it was a crashed ascent stage of one of the Lunar Modules. Several of them were fired remotely to crash into the lunar surface. They were used to check on the ALSEP seismographs.
Another thing could have been a Saturn 5 third stage. I believe a few of them were crashed into the moon as well.
 

ShadowMan

Designated Grumpy Old Fart
I was thinking it was a crashed ascent stage of one of the Lunar Modules. Several of them were fired remotely to crash into the lunar surface. They were used to check on the ALSEP seismographs.
Another thing could have been a Saturn 5 third stage. I believe a few of them were crashed into the moon as well.

Well isn't that just dandy. Now we need anti-litter laws for THE MOON!?!?!?! Can't go anywhere without people trashing up the environment!
 
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