AI 2023. Meet ChatGPT. - page 179

[Реter Konow]

Oh, I can hear something in the distance. I guess I forgot to close the door.

[Dmitry Fedoseev]

Andrey Dik #:

it didn't land, it collided with the surface...

How's that? Luna 25 was flying towards the Moon and suddenly the surface pops out of nowhere?

[Sergey Gridnev]

Dmitry Fedoseev #:

How's that? Luna 25 flew to the moon and suddenly the surface pops up out of nowhere?

The moon was travelling too. Apparently their trajectories suddenly crossed.

In general, Indians are small children in the development of budgets. Ours are good - now who will know how much was really spent, and how much was only on paper? Maybe there was a non-working mock-up of the lunokhod?

;)

[Dmitry Fedoseev]

Sergey Gridnev #:
The moon was flying too. Apparently their trajectories suddenly crossed.

In general, Indians are small children in the development of budgets. Ours are good - now who will know how much was actually spent, and how much only on paper? Maybe there was a non-working mock-up of the lunokhod?

;)

Yes, there is such a question. Is anyone following this lunar programme? Was the date of the Moon-25 launch known in advance or did everyone suddenly find out that tomorrow we were going to fly to the moon?

[Sergey Chalyshev]

Dmitry Fedoseev #:

Yeah, there's a question. Does anyone follow this lunar programme? When was the date of launch of Luna-25 known, was it known in advance or did everyone suddenly find out that tomorrow we are going to fly to the moon?

Yes)

We wanted to get ahead of the Indians.

We sent a toy satellite, in case we got lucky!

Wesent it in a hurry on a shortcut to get ahead of the Indians, but as expected, no luck.

But the budget was written off to force majeure - everyone is on the plus side).

p.s. what has ChatGPT got to do with it ?

I suggest that the topic be deleted as a flooding topic.

[Реter Konow]

Sergey Chalyshev 

...

p.s. what does ChatGPT have to do with it ?

I suggest to delete this topic as a flooding topic.

Nobody will delete anything. Your suggestions in writing submit to the sports lottery.))

In short, don't flood yourself.

[Реter Konow]

While the material is being worked on, the discussions in the thread may well concern various areas of modern technology and technological breakthroughs. Just like in the Migourney thread. Write, post, socialise. Everyone is invited to participate in the discussions. Well, almost everyone...

[Реter Konow]

Regarding the failed lunar mission, I have a different opinion. I believe that it is impossible to insure against accidents in space. Anything can happen.

[Реter Konow]

Below are pieces of collected material from Internet sites and Wikipedia about space failures of the 20th and 21st centuries:

• Mariner-1 was launched on 22 July 1962 to Venus, but 5 minutes after liftoff the launch vehicle veered off course and exploded. The vehicle's antenna lost contact with the guidance system on Earth, causing the on-board computer, whose programme contained an error, to take over control.

• Mariner-3 was launched to Mars on 5 November 1964, but the fairing protecting the automatic interplanetary station from heating during the first minutes of flight in the atmosphere did not separate. Mariner-3 did not reach the speed necessary to reach the Mars trajectory because of the excess weight of the fairing. In addition, the fairing that failed to separate prevented the solar panels from opening, which deprived the automatic interplanetary station of its main power source. The station, not receiving power from the solar panels, soon shut down, remaining in a heliocentric orbit.

• Mariner 8 was launched on 8 May 1971 to Mars . However, the upper stage of the launch vehicle began to wobble and spun out of control. Together with the payload, it entered the Earth's atmosphere about 1,500 kilometres from the launch site and fell into the Atlantic Ocean.

• Phobos-1 was launched on 7 July 1988. It was intended to explore Mars and its satellite Phobos. It was launched by Proton-K launch vehicle. Due to the fault of the TsUP operator, an erroneous command was sent to the spacecraft, there was a failure in the programme, because of which instead of the command to switch on the gamma-ray spectrometer, the command to switch off the pneumatic system of the vehicle's orientation and stabilisation engines was issued. With the most important orientation systems switched off, the station stopped orienting thesolar batteries to the Sun, and after some time the batteries were completely depleted. The spacecraft did not stabilise and rotated chaotically. The error was discovered only on the 1st of September 1988 when trying to conduct a planned session with Phobos-1. There was no more power reserve to respond to the corrective signals, the apparatus never made contact. Attempts to establish contact with it, continued during September-October, but no success. 3 November 1988 was officially announced the termination of attempts to contact the AMS.

• Mars Climate Orbiter was launched on 11 December 1988. The spacecraft arrived at Mars 9 months later. Mars Climate Orbiter on 23 September 1999 was supposed to give a braking impulse and move to a highly elliptical orbit with a period of 14 hours, and then within two months through a series of aerodynamic manoeuvres in the upper atmosphere of Mars to bring the orbit to circular. At the estimated time at an altitude of 193 kilometres, the spacecraft switched on its engines for deceleration. After 5 minutes, MCO departed behind Mars as planned and no further signals were received from it. From the data analysis it was assumed that the spacecraft passed over the surface of Mars at an altitude of 57 km instead of the calculated 110 km and disintegrated in the atmosphere. Such a large deviation was caused by a software error: the engine thrust commands in the Mars Climate Orbiter software used the Newton unit of force, while the software on Earth that created the commands used the British unit of measurement (pound-force).

It is worth mentioning the animals affected by space exploration:

Humans began being sent into space in 1948. On 11 July, the monkey Albert I travelled less than 100 km but died of suffocation. Later, aboard a ballistic missile, an altitude of 134 km was overcome by his "successor" - Albert II. Failure befell him only at the descent, the animal died because the capsule parachute did not open. Only Albert IV successfully returned to earth. The most famous of the primates who have been in space are Gordo and Ham. Gordo, not without reason, is called "the first Gagarin": he first made a revolution around the Earth.

//-----------

This is by no means a complete list of space failures. I intentionally did not specify the countries to which these failures belonged, because failures happen and will happen to ALL of them. This is how the history of space exploration is written.

[Реter Konow]

Here are more space failure stories (source: https://www.mirf.ru/science/chto-to-poshlo-ne-tak-glavnye-kosmicheskie-neudachi-xxi-veka/)

Disappearance of Beagle 2.

"On 2 June 2003, a Soyuz rocket launched from the Baikonur Cosmodrome successfully sent Mars Express to the Red Planet: at the time the most ambitious interplanetary mission in the history of the European Space Agency (ESA). It consisted of a spacecraft of the same name, which remained in orbit around Mars, and the Beagle 2 lander. The latter was to make the first soft landing on Mars in ESA's history.

Mars Express proved to be a highly successful spacecraft. It still continues to work, and recently ESA with pomp celebrated its 20th anniversary. Beagle 2 was much less fortunate. After arriving at Mars, Beagle 2 separated from Mars Express and entered the planet's atmosphere exactly as planned. But as ESA prepared to pop the champagne, Beagle 2 failed to make contact. ESA never managed to make contact with it.

The mystery of the disappearance of the "Beagle-2" long did not give rest to the designers, and they expressed a number of versions - from a defect in the heat shield to the failure of the parachute. And ufologists, of course, wrote it all off to Martian intrigues. The creators of the first "Transformers" found their own explanation for the disappearance. From the film you can learn that the "Beagle 2" destroyed by evil Decepticons.

The mystery of the death of "Beagle-2" was revealed only in 2015, when the American apparatus MRO finally managed to find and photograph the place of its landing. The reason turned out to be extremely offensive. The fact is that the descent vehicle was equipped with shock-absorbing air bags, which were supposed to soften the impact during landing. MRO images showed that one of these bags deflated not to the end, because of which the probe was unable to unfold the solar panels. Theirfull unfolding was necessary to avoid obstructing the radio antenna that provided communication with Earth. Although the landing itself was successful,Beagle 2 was unable to recharge its batteries or transmit any data from the surfaces."

Exploding comet explorer

"Despite enormous experience, even NASA is not immune to failure. And one of the most high-profile in the 21st century was the CONTOUR mission.

The purpose of the CONTOUR probe was to study comets. It was supposed to fly close to at least three tail guests and get detailed photos of their nuclei. NASA hoped that in the future will be able to find another suitable comet to which you can direct the apparatus.

CONTOUR was launched on 3 July 2002. On 15 August 2002, the spacecraft went silent forever. This happened after it fired its solid rocket motor to perform a planned manoeuvre. Subsequently, telescopes detected several objects on the flight path of the apparatus - so it collapsed.

Following the investigation, NASA concluded that the most likely cause of death was an engine explosion. It is also possible that the apparatus collided with something. But, unlike Beagle 2, we are unlikely to know for sure what went wrong."

Phobos-Grunt mission fiasco

" The Phobos-Grunt mission is most often remembered as an example of failure, but what it cannot be denied is that it was ambitious. The total mass of the vehicle reached 13.5 tonnes, which is still a record for automatic interplanetary explorers. By comparison, the mass of China's first orbital station, Tiangong, was 8.5 tonnes.

Most of this record mass was fuel. It was required to deliver to Mars a vehicle that would be able to land on the surface of its satellite Phobos, take a soil sample, then take off and deliver it to Earth. Phobos-Grunt also had a travelling companion in the form of the Chinese probeInho-1. It was to separate from the station after its arrival at Mars and begin its own science programme.

In addition to the Chinese probe, Phobos-Grunt carried a capsule with specially selected microorganisms. It was to return to Earth together with soil samples. Scientists planned to study it to find out how the three-year journey in interplanetary space affected the capsule's microscopic inhabitants and whether they managed to survive it.

Given the enormous complexity of the mission, many experts were cautious about its prospects. It is no secret that there were problems with the project's financing, especially at an early stage. But the launch of Phobos-Grunt was really awaited. After all, no country has not yet tried to solve a problem of this level of complexity and scale.

"Phobos-Grunt" was launched on 9 November 2011. Alas, it never managed to leave the vicinity of the Earth. Due to the failure of the marshalling propulsion system, the apparatus remained in Earth orbit. Despite all efforts, engineers failed to activate the installation. At the beginning of the following year, 2012, Phobos-Grunt entered the atmosphere. Its wreckage fell into the Pacific Ocean, burying the dream of an entire generation of Russian designers and engineers."

Japanese telescope's death spike

17 February 2016 was a day of triumph for the Japanese Space Exploration Agency (JAXA). Its experts received congratulations from colleagues around the world. Just kidding, JAXA successfully launched the Hitomi X-ray telescope into Earth orbit - one of the largest and most complex spacecraft ever built.

"Hitomi" was supposed to study supernovae outbreaks, the nuclei of active galaxies and supermassive black holes, as well as to look for traces of dark matter. But instead of revolutionary data, astronomers got a fiasco. Just 37 days after its launch, the brand new telescope collapsed.

Initially, everyone thought that "Hitomi" collided with a meteorite or a fragment of space debris. But it soon became clear that it was software that ruined it. Problems began with the download of a patch that contained incorrect data on the configuration of the equipment. After that, the stabilisation system of the apparatus considered that it began to rotate around its axis (which was not in reality), and tried to correct the situation by turning on the engines.

TheHitomi's onboard computer then tried again to correct the position by reorienting the telescope towards the Sun using the main thrusters.This decision was fatal. The telescope began to rotate even more strongly, after which the centrifugal force tore away from it all the fragile and protruding elements, including the solar panels.

The disaster was a blow to JAXA's prestige. But over the years, the organisation has built another X-ray telescope XRISM, which will take over some of the functions of the lost "Hitomi". Its launch will take place on 26 August.