China lands spacecraft on 'dark' side of moon in world first

[fansongecho]

Thanks ArMaP, but I don't buy the explanation, no disrespect to yourself.

Also that image of the lander, how is it they always land on a surface perfectly??.  its the dark side of the moon, what technology did they use to provide accurate data, that would ensure the lander craft landed on an even and mostly flat terrain, also, how did the lander descend?? and what mechanism was used to ensure that the lander alighted on the surface with minimum damage when contacting the moons surface ?

I am sorry buddy, but I remain to be convinced.


Cheers,

Fans'

[zorgon]

ahhhh ..but ..they are showing pictures..just like we did..

QUESTION (for all)

When Apollo went behind the Moon there was transmission blackout...

How is the Chinese lander sending photos from the back side of the moon?

why does everyone want to lie about being there....sigh

The same reason they created fake fireworks for the Olympics and replaced the actual singer with one that looked pretty...

It's what China does best  LOL

Beijing Olympic 2008 opening ceremony giant firework footprints 'faked'


Olympics: Child singer revealed as fake

[zorgon]

It did show change in the shadows.

Did NOT and it was a model with no recognizable features

Prove me wrong 

[zorgon]

The Chinese have landed on the dark side of the moon - why are there no stars apparent in their images ?

Because it is hard to add in fake stars. Astronomers would spot the difference



So NASA SAYS:

If you could turn off the atmosphere's ability to scatter overwhelming sunlight, today's daytime sky might look something like this ... with the Sun surrounded by the stars of the constellations Taurus and Gemini.



http://apod.nasa.gov/apod/ap070621.html

ArMaP Says:

For the same reason there are no stars in the other photos taken on the Moon's surface, due to the brightness of the scene (bright Sun, no clouds and no noticeable atmosphere to block any light), any small, less bright point of light will be too weak to appear on the photos.

Zorgon says:

IF that was true how are we able to get VENUS into a photo before sunset with the moon in the same photo? There are MANY bright stars and planets that easily show up in photos and would do so on the moon as they are even brighter. Below is Venus just below the moon at sunset...

[zorgon]

ahhhh ..but ..they are showing pictures..just like we did..

Pictures you say?  Oh because pictures are proof?

Hmmm

Like THIS Picture? No stars in the sky either but a marvelous Earth... At least THESE hills are a little more Jagged like Lunar Orbiter photos show



I guess James Bond is proving that the moon does have atmosphere like John Lear says it does, eh?

[zorgon]

Now then what about THIS picture?
Can anyone tell me where this is taken?

[space otter]

no can't tell ya where it was taken but can tell ya where to find it
bwhahahahahah..gotta luv it





Best guess for this image: apollo 17 lem on moon

Pages that include matching images
Web results
The Space Review: Preview: Magnificent Desolation
www.thespacereview.com/article/419/1

400 × 272 - Aug 1, 2005 - Magnificent Desolation: Walking on the Moon 3D doesn't open until this ... where a series of footprints leads to the lunar module for Apollo 17.



Apollo Reality - The Living Moon
www.thelivingmoon.com/forum/index.php?topic=455.15

640 × 422 - Reply #15 on: December 17, 2011, 02:34:23 AM » ... In all, some 700 boxes of transmissions from the Apollo lunar missions are missing, he said. ..... could have been used for moving the LEM and we saw the huge moon props at Langley that ...

[micjer]

The area where the probe has landed faces away from Earth, meaning it is free from radio frequencies. As a result, it is not possible for a lunar rover to communicate directly with ground control. To overcome this hurdle, China launched a dedicated satellite orbiting the moon last year that will be able to relay information from the rover to Earth.

https://www.cnn.com/2019/01/02/health/china-lunar-rover-far-moon-landing-intl/index.html


This is how they say they are communicating with the rover.

[zorgon]

no can't tell ya where it was taken but can tell ya where to find it
bwhahahahahah..gotta luv it

That link to thelivingmoon TELLS YOU where   

But I can tell you 

It was taken in BUILDING 9 at LANGLEY... but that photo was taken in 2004. They used the SAME BUILDING at Langley that was used for the original landings... because the Moon props were still there

THIS is what it looks like before adding the hills and black sky. THIS is why there are no stars, because it is IMPOSSIBLE to fake the real stars and get the angle and placement right in the sky from the lunar surface perspective...




Here is how it was done

[zorgon]

This is how they say they are communicating with the rover.

great You get the hero cookie

Now then  can you provide us LAUNCH DETAILS of the communication satellite they sent up with the Lander?

Thanks in advance

[space otter]

http://www.planetary.org/blogs/guest-blogs/2018/20180615-queqiao-orbit-explainer.html

Luyuan Xu • June 15, 2018

How China's lunar relay satellite arrived in its final orbit
After a 24-day journey, Queqiao, the relay satellite for China's Chang'e 4 lunar mission, successfully entered its Earth-Moon L2 halo orbit. A normal mission to lunar orbit usually takes four or five days, but Queqiao took much longer due to its special orbit. Here's a guide to the spacecraft's long and complicated journey.

...
After launch on May 21 at 5:28 a.m. Beijing time (21:28 UTC May 20), Queqiao was directly sent into an Earth-Moon transfer orbit without an Earth parking orbit phase. There are two kinds of transfer orbits from Earth to the vicinity of Earth-Moon L2. One is direct transfer, which is directly from Earth (or Earth parking orbit) to L2.

lots of diagrams at link


...............................


http://www.planetary.org/blogs/guest-blogs/2018/0519-change-4-relay-satellite.html

Luyuan Xu • May 19, 2018

C

hang'e 4 relay satellite, Queqiao: A bridge between Earth and the mysterious lunar farside
China's fourth lunar mission, Chang'e 4, is expected to begin on May 21 with the launch of a Long March 4C rocket from the Xichang Satellite Launch Centre in the southwest of China. The launch will carry a spacecraft named Queqiao, which will serve as a communication relay satellite between Earth and the lunar farside. The name Queqiao means "magpie bridge" in Chinese and comes from a Chinese folk tale, a love story about a flock of magpies that form a bridge crossing the Milky Way once a year to reunite lovers known as the Cowherd and the Weaver Girl, as well as their children.

How to pronounce Queqiao and Longjian

Chang'e 4 is planned to send both a lander and a rover to explore the far side of the Moon. If successful, Chang'e 4 will be the first-ever soft-landing mission on the lunar farside. However, huge technical challenges exist. Since the lunar farside always faces away from the Earth, direct communication between any farside in-situ explorers and the Earth is blocked.

This is because the Moon is a synchronously rotating satellite of our planet Earth, which means it rotates exactly once for each time it circles Earth. The match of spin and orbit means the moon is rotationally locked to the Earth, so we can only directly see one hemisphere of the moon (aka, the nearside) from the Earth. (Because the Moon's orbit is slightly elliptical, we actually get to peek slightly over the east and west edges of the Moon every orbit, but most of the farside remains mysterious.) Synchronous rotation is nothing unique between  Earth and the Moon. Nearly all the regular satellites of the outer solar system planets, and even some exoplanets are in synchronous rotation states with their parental planet or star.

How do we have any data on the lunar farside? Orbiters circling the Moon gather data autonomously and send data back when they're in view of Earth. Humans first saw the lunar farside through a camera on the Soviet Luna 3 spacecraft in 1959. However, important scientific measurements for the lunar farside that require real-time contact with the Earth cannot be conducted directly. For example, gravity measurements by Doppler tracking, communication between a lander/rover and the Earth, Lunar Laser Ranging (LLR) measurements, and other experiments aren't possible over the farside. The first direct gravity measurement for the lunar farside was not conducted until 2007, when Japan's Kaguya m ission used a 4-way relay satellite for Doppler tracking. To enable communication from the future first lander and rover on the lunar farside, we will need a communication bridge, Queqiao.

The Queqiao satellite is 425 kilograms in weight and has a planned lifetime of more than 5 years. Both the solar panels and lithium batteries provide its energy. It will perform relay communication using a 4.2-meter diameter umbrella antenna, talking with the lander/rover at X-band and communicate with the Earth ground station at S-band frequencies. Meanwhile, the lander will also receive UHF transmissions from the rover, decode them, and send the decoded data on to the relay satellite.

[zorgon]

After a 24-day journey, Queqiao, the relay satellite for China's Chang'e 4 lunar mission, successfully entered its Earth-Moon L2 halo orbit.

Seems China is now highly advanced in the space business to be able to achieve a HALO ORBIT and maintain it for over a year (considering that the craft would need to have the ability to make orbital adjustments (station keeping))

A halo orbit is a periodic, three-dimensional orbit near the L1, L2 or L3 Lagrange points in the three-body problem of orbital mechanics. Although the Lagrange point is just a point in empty space, its peculiar characteristic is that it can be orbited. Halo orbits can be thought of as resulting from an interaction between the gravitational pull of the two planetary bodies and the Coriolis and centrifugal accelerations on a spacecraft. Halo orbits exist in any three-body system, e.g. the Sun–Earth–Orbiting Satellite system and the Earth–Moon–Orbiting Satellite system. Continuous "families" of both Northern and Southern halo orbits exist at each Lagrange point. Because halo orbits tend to be unstable, stationkeeping is required to keep a satellite on the orbit.

Most satellites in halo orbit serve scientific purposes, for example as space telescopes.

[bigpappy51]

QUESTION (for all)

When Apollo went behind the Moon there was transmission blackout...

How is the Chinese lander sending photos from the back side of the moon?

That is the first thing I thought as well Unless they positioned a satellite in a orbital lock high above the backside of the moon would be the only way the transmission would go through the moon is huge people don't seem to understand the size of the moon.

The photos look fake as the old NASA images. I have a problem with all these images you can so easily see the lunar terminator which appears to be about maybe a mile away at the most that would make the moon about 1/20th of its real size.

[fansongecho]

What are they hiding from us? this maybe ?   

https://www.youtube.com/watch?time_continue=34&v=9WoM2bHfr48   

[Sgt.Rocknroll]

I would be more impressed if they landed in the Sea of Tranquility and motored over to the Apollo 11 landing site, just to say Hello!