A long time ago, there was a saying that the stars in the sky are a curtain, as long as they are out of space, they can't see the stars, and human beings are imprisoned on the earth by advanced civilizations!
So can you see stars in space? This question may need to be answered by astronauts. On the morning of July 4, China's space station astronauts began to carry out the mission out of the cabin, three astronauts Nie Haisheng, Liu Boming and Tang Hongbo each had a task to cooperate with each other, the outgoing activities astronauts Liu Boming and Tang Hongbo performed the task of leaving the cabin, a total of two lines, one is through the mechanical arm to reach the operation point, the second is through the outer handrail of the cabin to climb to the operation point, Nie Haisheng operates the mechanical arm in the cabin, Tang Hongbo is the main operator, Tang Hongbo assists.
In fact, after Liu Boming took the lead in leaving the cabin, Nie Haisheng inside the space station really asked: Did you see the sky full of stars? But in the end there was no answer. In fact, it can be understood that astronauts go out of the cabin to carry out tasks, although Liu Boming is not the first time to enter space and the first time to go out of the cabin, at the same time, countless experiments have been carried out on the ground, but it is inevitable to pay attention to the very concentrated in space, and there is no concern to answer this question.
<h1 class= "pgc-h-arrow-right" > can you see stars in space? </h1>
In fact, the answer is yes, stars can be seen in space, and it will be clearer than on Earth. On the surface of the Earth, whenever night comes, we can see the sky full of stars, these stars are close to the sun in the Milky Way, and the light they emit comes to the solar system after a long interstellar journey. For example, the common planet Sirius, considered to be the brightest star, is located 8.6 light-years away in the constellation Ofis Major. There are also the common Big Dipper stars, which are between 78-124 light-years away from us.
Whether the stars can be seen on Earth depends only on the thickness of the clouds and the day and night, when the clouds are thicker, it is difficult for the naked eye to see the stars, and the sunlight is stronger during the day, and the dim stars are shrouded in sunlight and cannot be seen. But after entering space, there is no restriction on the atmosphere, we can no longer see the glittering of stars, that is, "blinking eyes", and the stars seen in space will be very clear. The image below was taken by astronauts on the International Space Station, which flew over Namibia in July 2019 and was taken with a 1-minute delay to form a star orbit map.
From this picture, not only the star orbit can be seen, but also the artificial light on the ground. It has been suggested before that the statement that the stars cannot be seen on the moon is actually the same truth. There are many photos of the moon landing in the last century, almost all the stars in the photos are black invisible stars, so many people think that the moon can not see the stars, but in fact, it is wrong, the reason is very simple the camera is shooting the moon astronauts and landers of the perspective, the exposure time is not enough to show the stars.
< h1 class= "pgc-h-arrow-right" >can astronauts on the Chinese space station see stars? </h1>
You can take a look at the picture below is our country and the core cabin out of the cabin panoramic camera A to take a beautiful view, the beautiful earth is mostly presented in front of us, but in the deep space background of the photo is a piece of black, can not see the existence of stars, this reason and the moon on the photo background black is the same, are because of the camera shooting problems.
On July 4, the chinese space station astronauts' outgoing activities lasted for about 7 hours, which is a qualitative leap compared to the first 15 minutes of Shenzhou 7's capsule, of course, China's first manned capsule is a verification of the capsule, as long as it goes out to deploy the five-star red flag, it is a success. But the first outgoing capsule of the Chinese space station was missionary, requiring familiarity with the use of robotic arms and adjustments to extravehicular equipment.
This time, the astronauts of the Chinese space station went out of the capsule for 7 hours, during which they needed to experience several day and night cycles. The Chinese space station has an orbital altitude of 400-450 kilometers, an orbital inclination of 42 degrees, a total weight of about 90 tons, and takes about 90 minutes to orbit the earth. This means that astronauts Liu Boming and Tang Hongbo experienced about 5 days and nights in 7 hours.
In the back-to-sun region, that is, the night on the earth, the astronaut can see the sky full of stars, but in the direct sun zone, normally speaking, it is not directly facing the sun to see, but in other directions, the stars can be seen, because in space there is no so-called day, as long as it is not looking at the sun background is black.
But it is worth noting that astronauts on the Chinese space station need to wear extravehicular spacesuits to perform missions, which is equivalent to a miniature orbiter, and astronauts can look at the stars through the face window. The outer space suit window has four layers, the first three layers of the middle spacer are filled with nitrogen and anti-fogging agent, the outermost layer is a filter version of gold, whenever you enter the direct solar zone, you need to pull down the filter window, which can protect the astronaut's eyes, which means that the astronaut may not be able to see the stars, and the starry sky background may be completely black.
< h1 class="pgc-h-arrow-right" > summary</h1>
Stars can be seen in space, but astronauts will pull down the filter window in the direct sunlight hemisphere when performing the mission out of the capsule, which means that sometimes the starry sky can be seen, sometimes the stars cannot be seen, and the deep space is completely black.
Text/science black hole, image source network intrusion deletion.