00:00So, astronauts still have a lot of work to do.
00:04They take care of the breakdowns on the ship, go into space to repair something,
00:09carry out experiments, keep daily records, report to all the centers on Earth
00:14and sometimes meet mysterious, unknown things from space.
00:18Let's see which ones.
00:20So, you are alone in a small spaceship.
00:24You have our big planet on one side and the infinite black space on the other.
00:28You check the instruments, doing astronaut tasks, when you hear a strange sound.
00:34Someone or something hits your ship.
00:37You realize that it is impossible, but then the blow repeats.
00:41You look out the window, but you see no one.
00:44Then you report the incident to the ground distributors.
00:47Nobody knows what it could be.
00:50You have trained your tolerance to stress and your mind for many years,
00:54but now you are a little nervous.
00:57Astronaut Yang Liwei heard for the first time a mysterious sound of a blow in 2003
01:03when he was inside a small spaceship during the first Chinese space mission.
01:08Yang stated that the sound was like a blow carried on an iron bucket with a wooden hammer.
01:13He also noted that the blow did not come from the outside of the ship or the inside.
01:17He could not determine the source.
01:20When Yang returned to Earth, he tried to reproduce the blow so that the experts could discover its nature.
01:26But no one managed to find out what it was.
01:29A similar story was repeated with other Chinese astronauts in 2005 and 2008.
01:35Yang's colleague suggested that the ship could produce the sound due to the expansion or compression of the hull.
01:42The temperature inside the ship was very different from that of space.
01:46And this difference could lead the metal hull to produce a sound similar to a blow.
01:51So don't see any criticism.
01:54Another mysterious sound was heard by NASA astronauts during the Apollo 10 mission
01:59as they orbited around the moon.
02:01It was a strange unknown wind.
02:04One of the astronauts described it as cosmic music.
02:07Information on this incident has been classified for a long time.
02:11But recently, NASA has explained the mystery.
02:14The sound of the whistle was only a radio interference. Yes, that's it.
02:18But that does not mean that there is no scary sound in space.
02:21NASA has launched numerous search probes into the infinite depths of space.
02:26One probe recorded the sounds of Jupiter.
02:29Another, the sounds of Saturn.
02:31The third probe recorded particles of dust and small rocks crashing on the ship.
02:37Technically, these are not sounds because sound waves cannot exist in space.
02:42The ships recorded radio emissions of various objects.
02:45Then the scientists transformed these waves into sounds.
02:48And the coolest thing is that you can find all this on the Internet.
02:53There were many rumors and legends about Neil Armstrong and his landing on the moon.
02:58One of the most popular myths tells how the astronaut saw strange spaceships on the moon.
03:06The astronaut never commented on this case.
03:08And his testimony, as well as the data he provided at the Earth Communications Center, have been classified.
03:14But, according to the legend, Armstrong said disturbing words when he was on the Earth satellite and saw something.
03:21These babies were huge, sir. Huge!
03:25You would not believe me, I tell you.
03:28There are other spaceships over there, aligned on the other side of the crater.
03:33They are on the moon and are watching us.
03:35After that, he returned to the spaceship and flew to Earth.
03:41Yes, it certainly looks like an urban legend.
03:45In 2005, the commander of the International Space Station, Leroy Chiao, saw strange lights when he went out into space.
03:52He described them as a set of white lights rising from the ground and crossing it.
03:57His colleagues pointed out that it could be an optical illusion,
04:00caused by many fishing boats equipped with projectors along the South American coast.
04:05Leroy saw the light of the boats refracting and crossing his helmet.
04:09He doubted this version because it was at an altitude of 370 km,
04:14and the boats must have had quite powerful lights.
04:17But the astronaut was also skeptical about the extraterrestrial origin of these lights.
04:23One of the most common mysterious phenomena associated with space is sparkling light.
04:28But sometimes, people notice something more material.
04:32For example, the astronaut of the NASA Asterooms Grave saw a tube flying in space,
04:38moving like a snake.
04:40He hypothesized that it was a living creature from another planet,
04:44or something similar.
04:46Of course, no one believed it.
04:48People assumed that the astronaut had seen a piece detached from the ISS or a space debris,
04:53like a pipe or a tube.
04:55But the astronaut was sure that this tube had moved like a living organism.
04:59However, the version with the flying waste seems much more legitimate.
05:04During the Apollo 11 mission,
05:07the astronauts reported strange bright lights in their eyes.
05:11The members of the Apollo 12 and 13 teams saw the same thing.
05:15The strangest thing was that they saw these lights even with their eyes closed.
05:19Then, many astronauts reported seeing bright lights.
05:23They saw lights before going to bed and in dark rooms.
05:27Some were bright, while others were less intense and of different colors.
05:32During extravehicular departures, they repeated every few minutes.
05:38Scientists conducted experiments on Earth to understand the nature of this strange phenomenon.
05:44As a result, NASA concluded that the astronauts had observed cosmic rays of an unknown nature.
05:51Researchers suggested that the particles of these rays directly affected the receptors of the retina.
05:57The optical nerves of the astronauts felt the radiation,
06:01and their brains reacted to it with light flashes.
06:06During the Gemini 4 space mission,
06:08astronaut James McDevitt saw a strange geometric object in space,
06:13similar to a tin box with a pencil coming out of it.
06:17As soon as the media were informed,
06:19the newspapers began to claim that James had seen a ship of another civilization.
06:25Then, a few years later, the astronaut refuted this theory.
06:29He saw pictures taken inside the ship and noticed the same tin box on it.
06:34It turned out to be a reflection of a few bolts on the window sill.
06:38Besides, this was only one of the many times
06:40when astronauts confused the ship's details with strange things in space.
06:45In 1962, astronaut John Glenn was inside the spaceship Friendship 7
06:51when he noticed strange things outside.
06:55They looked like tiny luminous light bulbs.
06:58Glenn immediately reported this to NASA's command post.
07:02The distributors did not know how to comment on this message,
07:05so the nature of the cosmic light bulbs remained unresolved.
07:09But then, almost a year later,
07:12But then, almost a year later,
07:14astronomers discovered what it was actually.
07:17At first, they thought that the light bulbs were pieces of metal
07:20torn from a part of the ship.
07:22But they then realized that the sparkling lights were frozen liquid droplets
07:27that were moving and cracking in space.
07:30One of the strangest cases in the history of the beginnings of space exploration
07:35took place during the Gemini 6 spacecraft mission on December 16, 1965.
07:42Two astronauts, Wally Schirra and Tom Stafford, were on board.
07:46They were preparing to return to Earth,
07:49but saw something strange in space.
07:52Wally contacted the mission control center
07:55and reported that he was observing an unknown object resembling a satellite.
07:58It was moving from north to south, somewhere in the polar orbit of the planet.
08:02The object was approaching them, and the astronaut could see the details.
08:06It was an unknown spacecraft with a pilot dressed in a red suit.
08:10Wally heard on the radio that the voices of the command center were getting tense.
08:14No one knew what it was or how to react to the unknown ship.
08:18Then, at that moment, they began to hear what seemed to be music.
08:24One way or another, the jingle bells song began to play on the radio.
08:28Wally Schirra played it on the harmonica.
08:30And the command center realized that all this was just a joke.
08:34Schirra and Stafford made up this Christmas joke a few weeks before the flight.
08:39They wanted to cheer up their colleagues on Earth
08:42by saying that they had seen Santa Claus in a spaceship.
08:46When Wally Schirra finished the song,
08:48the guys on Earth relaxed and said it was really exaggerated.
08:52It is still one of the most famous jokes ever made by astronauts.
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